Any time the flow of air (or part of the air) has to change its velocity vector (direction and/or speed), even slightly, work is done on the air, and this requires either heating or force times distance. Pressure is force over area. Velocity change occurs not only when a duct bends, but when there is turbulence in the duct or at the duct walls, or when the air is forced through a filter, around baffles, etc. Thus, there are many ways that pressure drops occur along a flow path. If not, one could blow through a straw without having to build up pressure in one's mouth. I use a large (three-foot-square) vaned ceiling diffuser to introduce MUA into a hallway adjunct to the kitchen. The diffuser is about 18 feet from the edge of the hood. This configuration was the best option relative to where I could take the air from the roof area. It is my expectation that by the time the air gets to the vicinity of the hood it is flowing relatively smoothly and low in velocity due to the size and length of the hall. Certainly other approaches would work for other kitchens depending on where the air is taken from and how a house is architected. Test kitchens use a porous diffuser panel in an adjacent wall to the hood under test. I am sure that from a functional point of view, MUA flowing out from enough toe-kick area would also work, so long as it wasn't somehow directed at the stove. For example, if a cooktop were on an island, and the entire toe-kick area were grilled using a set of registers, the MUA would flow out and then up in a way that did not disturb the rising effluent from the pans. Even down flow behind a refrigerator can work if the path behind and underneath the refrigerator is relatively open (several times the area of the supplying duct.) Never forget that perfect is the enemy of good enough, and what we are trying to accomplish is good enough capture of grease, moisture, and odor. Good enough is also user dependent, so not everyone needs to put up with the compromises that a nearly perfect MUA system would impose on a house. So, my best advice is to find a way to introduce the air that doesn't blow at the cooking zone and disturb the natural rise of the cooking effluent. kas

@ kgiov > Hysterical! Thanks for sharing. We went through an infestation about 4 years ago. I just saw a few nits and 2 black dots in my daughter's hair and a 2 nits on my son. I am treating all of us like it's an infestation so that it doesn't BECOME one! The things that worked best for us last time were: washing all bedding and clothing in hot water and drying on hot heat; putting stuffed animals and such in bags in the garage for 3 weeks; Using LiceGuard Robi Comb. It "zaps" anything in the hair. LOL! I found it at Walmart near the eye-glass section, and they are sold them online, too. AND What killed off the live lice for us was a combination of what a pediatrician recommended and a home remedy a friend recommended. The pediatrician recommended that we follow-up treatment by putting an excess of Dippity-Do in the child's hair, letting it dry, and leaving it in overnight in order to suffocate whatever live lice were left. The home remedy that was recommended was saturating the hair with mayonnaise and then wrapping it tightly with Saran Wrap to suffocate whatever live lice were left. We couldn't find Dippity-Do, but we found a similar product at Rite-Aid (although I've seen it at Walmart, too) called La bella Styling Gel. It's in a tub and is light yellow color. We used the "Ultimate Hold" type. We parted the hair in little sections, saturating the roots first. [After the La bella, we used mayonnaise, too, "just to be safe." But, we won't do that again. The mayo melted once warm on the head and dripped.] Once we were done with the saturation, we combed the hair up at all the hairlines, and wrapped the head tightly with a great plastic wrap called Press 'N Seal, with the sticky side IN, pressing out the air bubbles as we went. Without a pillow (so they wouldn't slip down and pull off the plastic wrap), we lay them down on their bed on top of a towel for the night. [I've heard to leave the head wrapped "12-24 hours" since then. We'll probably do 12-14 hours tonight.] This did the trick. We wished we had done this (without the mayonnaise) and used the Robi Comb during from the beginning, as the Nix didn't do anything anyway. HTH

I will try to condense this because I could pontificate for hours on this! My love for gardening came from my father. He was the ultimate green thumb-he didn't have formal training that i know of, but he was a street tree gardener for two of the communities we grew up in, and always had a vegetable garden as a way to supplement our large family's food budget.(Six kids) He was a school music teacher and when summer vacation began he was always found out back tending the garden for pretty much the whole summer. Of all six children I seemed to be the most interested in what he did-and my first memory of my own interest was when he gladly allowed me to plant marigolds around the border of his garden to keep pests away(this was a fairly large plot and now I know why he jumped at my offer to help him!)I was in elementary school at the time. Also eating a tomato whole and sprinkled with salt always brings dad's tomatoes to mind. And asparagus and homemade pickles.... That was my first taste of working in a garden. It wasn't until I was a first-time homeowner that I knew I was going to be a gardener but I chose to go the route of flowers instead of vegetables. The saddest thing, though was that the year before I moved into my new home, my dad developed Alzheimer's disease and everything I needed to ask him for gardening advice about trees and organic gardening was completely gone-he was just a shell of my father-quite sad. Not a day goes by when I'm in my yard and garden that I don't think of Dad and the gift he gave me. I just wanted to share it with him. He passed away two months ago. Just an interesting note; Our family surname has it's origin from Poland and it means 'gardener of an estate' I find that kind of neat. Maybe it's in our bloodline to be gardeners! * Posted by: pkock Zone 6 (My Page) on Tue, May 28, 02 at 2:44 So glad to find this thread - hope it lasts, because it's fun! Honestly, I am not sure what got me hooked. I think it's my tendency to love "scientific" stuff - I never pursued it professionally, but I'll make anything into a science experiment. I got through two pregnancies with that attitude. ;-) My grandma was the gardener in our family. She lived with us, and each year we had to have a veggie garden. My dad wasn't into yard work much, but was "forced" into the labor required, turning over the clay soil with a spade and protesting the entire time. Always basic stuff - tomatoes, peppers, pole beans, but they sure tasted good. We had strawberries for a couple of years, and there was a big apple tree in our yard that grew "cooking" apples. Grandma made lots of pies and applesauce. Then there was Girl Scouts - one year we had a hike with a knowledgeable person who pointed out all the fantastic wild plants along the trail. I absorbed it all like a sponge. This is rare, this is edible, this is a cure for poison ivy, etc. I still remember most of it, teach my daughter, and soon will teach her scout troop too. I was voted "Miss Outdoorswoman" in high school. Isn't that neat? Some things never change. :) --Pam * Posted by: Lucy2 Z7Atlanta (My Page) on Wed, May 29, 02 at 8:23 I love reading these. I remember going to visit my grandparents in Texas every summer. We lived in New Hampshire and would fly down and my grandparents would meet us at the airport. The first thing we would do when we got to Grandma's house was run to her garden. Every year she planted a watermelon JUST FOR US! Oh, how special that was. We would walk into the garden and she would "double check that it was ripe and time to pick it and she would let us watch as she "ever so gently" plucked the watermelon from the garden and we would sit on her front porch all afternoon eating the best watermelon we had ever tasted and spitting seeds as far as we could. Sadly, my Aunt burst my childhood memory bubble (when I was in my 40's but it still hurt!) by telling me that my Grandparents would go to the grocery store the night before we flew in, buy a watermelon and lay it in the garden "just for us", pretending they planted it and grew it all along...I guess I'm in denial because I still tell my children about those fond memories! * Posted by: becki3 z5 IN (My Page) on Tue, Jul 23, 02 at 20:34 Can I still step in here? This is such a wonderful thread, brought back some great memories. But now I'm sitting here with tears in my eyes and a big lump in my throat. One of my first garden memories is of my next-door neighbor when I was very small. She had a gigantic (to me) gooseberry bush that she would make pies for us from, if I would pick the berries. And she also had a thick grape vine that she would sit down with me in the middle of the yard and eat grapes from right off the vine. We always sat on the other side of it so my mom couldn't see us from the window. I don't think she would have minded, but my neighbor made it fun, thinking we were being secretive. She also had about a million plants in her house that she would show me all the time. Thinking back on it now, I realize they were mostly African violets. She was in her late 80's, early 90's, and I thought she was the best neighbor a girl could ever have. (still do) :) Then there was my grandpa. When he was a teen in the service, he had come home to visit his mom just before being shipped overseas. He took ONE little segment from her Christmas cactus, which had been a wedding present 25 years before that, and put it in his wallet. He then drove all the way across the country (took a few days), all the while sitting on this wallet. Just before being shipped out, he stuck this one little smashed, dried up piece of Christmas cactus and stuck it in a little pot of dirt from the ground outside his barracks. I'm not sure what happened to it (where it was, who took care of it) while he was in the war. But I do know that when he died in 1994, that Christmas cactus was not only alive, but very, very, VERY big. He had built a planter for it on wheels so he could move it outside in the summer and back inside for the winter. He also had a ramp leading up to his patio door, which he had to remove to get it through. This "planter" was 5 feet long, 3 feet wide, and 4 feet deep. Filled all the way with soil and thick, long roots. And the plant filled every inch of the top of the soil and hung down to the floor all around. He had to give it a "haircut" every time he moved it in or out so he wouldn't run over it with the wheels. I now have a pretty good size pot of this same plant in my husband's office, where it sits in front of a huge window all year long and blooms from Oct to around May every year. I ask about or stop by to check on this plant about once a week. I'm always terrified I might lose this plant, I feel like somehow I would be losing my grandpa all over again. Or that he might be disappointed in me for letting his precious plant die after having survived 4 generations in our family. But my all-time favorite childhood memories (of any kind) come from my Aunt Julia and Uncle Bill. They had a big farm in Missouri with a couple horses, a coop full of chickens, and about 300 head of dairy and beef cows at any given time. Along with the usual couple of dogs and a barn full of cats. And I remember one time my Aunt sent me out with the horse to get a few apples from the big tree out in the east pasture to make a pie for dinner. She told me to get a sack out of the barn to carry them in. Well, being about 8 or 9 at the time, I had no idea how many apples it took to make a pie. So I took 2 big gunny sacks, and me and Ginger (the horse) set out to find that big tree. Ginger was so patient with me as I stood on her back on the blanket that I rode with (never used a saddle) to pick all the apples that I could reach. I tied these two gunny sacks across her back and filled them up full. (poor horse!) When I got back, I didn't think my Aunt and Uncle would ever stop laughing. Instead of a few apples for a pie, I had just picked enough apples for an entire week of non-stop canning, freezing, and baking everything we could think of that contained apples. Then there were the times that Aunt Julia and I would pack a picnic basket to take out to my Uncle Bill when he was working the fields. We would sit under a big tree and just watch him disking the field, or baling the hay until he noticed us in the distance. Then he would come get me and let me drive the big tractors for a while before we ate. But one of my most vivid and comforting memories is of me and Aunt Julia sitting on the porch swing snapping beans or shelling peas. I can't remember who picked those beans and peas, or what she did with them afterwards. But just sitting there snapping and shelling, not even having to speak, but feeling like the most loved person in the world. I just started to garden seriously for myself last year, and this year I had to have those green beans and peas. And I think of my Aunt Julia and Uncle Bill every time I go out to the garden. I almost started crying when my daughter (5yo) asked me the first time if she could help me shell the peas. She had so much fun with them I didn't even mind the ones that kept flying across the kitchen to land under the cabinets or off in a corner with the dust bunnies. And I can just see my Aunt and Uncle smiling now (more like giggling probably). Right now I think I need to call them (they live in Arizona now) and tell them how much I love and miss them, and maybe thank you for teaching me about all the things I love the most. Then I think I will sit down and start crocheting an afghan for Aunt Julia (she taught me how to do that when I was 6). Luckily I learned to crochet a lot better than I learned how to milk a cow (sorry Uncle Bill)! Thanks for letting me take this stroll! Becki :) * Posted by: Mirri 5 (Finland) (My Page) on Fri, Jul 26, 02 at 3:06 My first attempt to garden vegetables was when I was 9. I loved peas, so I wanted to grow them. My father formed me a lot saying it would be too hard for me, turning the thick soil. Then I sow the peas and watered them for about 2 weeks. Then my first dog - who died of old age a few years back at 13- had a friend over. They were just puppies back then, running and playing. My daddy warned me, but I wanted to let them play on our rather tiny lot. They run over my pea-lot several times, breaking all those tender 15cm pea shoots. Oh, how I cried. Then I took little sticks and tied the shoots back up. Most of them recovered. Then the dogs, Roope and Olga, run the pea shoots down again after a week or so. And I gave up. I quit gardening for about 10 years. I only had a few cacti which I killed and bought new ones. But now I am a horticulturist. Working, ironically, in a greenhouse that produces pea shoots! I think that the wonder of growing, seeing the shoots come up from earth was a positive thing in the end. Even though I didn`t get to harvest the peas. This year I have a tiny pea-lot again, the first time after I was 9. I have harvested some, but my dog keeps steeling the pods before I find them. When I was 17 I found gardening again, in the form of houseplants. I was living in a tiny oneroom flat without balcony. The houseplant hobby lead me into studying horticulture. Now I have a son and 2 dogs. If Pyry wants to be a little gardener, I will build a fence around his lot. * Posted by: prairie_rose southalta (My Page) on Tue, Aug 20, 02 at 23:56 my earliest memories. being sat in the potato patch with a coffee can with some kerosene in the bottom and picking potato bugs and putting them in the can. i think that was the way my mom and grandma kept us out of their hair on wash day ( the old wringer washer, rinse tub, mangler days.) i remember the smell of the compost heap, and i never thought it was nasty. my grandpa and i spent lots of time there, spreading things out, turning it over occasionally. i think i must have got compost in my veins, replaced all the blood, cause i still don't find the compost heap all that nasty. (compost tea, well that is a different story. lol) i remember i hated bringing kids to our house in the fall cause you could smell the crocks of sauerkraut brewing. we lived on the edge of town, and i swear my mom was the only one who canned. but i couldn't wait for it to be ready and eating the stuff till i was sure i would burst. i remember we were the "poor kids" but we ate better than any of my friends, and were healthier than most of my friends. the garden was a way of life, and everyone was expected to pitch in. and when harvest happened, everyone was expected to come home to can. my mom would pick the weekend and as young adults, we all showed up. 5 women in a kitchen!!!!! lots of hard work, but lots of laughs, too. and when it was over we all got our share to take home. now, i am a single mom with two kids, and all those lessons are paying huge dividends. my two are the "poor kids" but they eat better than most of their friends and are healthier than most, too. what i save at the supermarket because of the garden pays the morgage and the extras for the kids. and this year, my daughter is taking an active part in the canning. i just wish my grandma, mom and sisters were here, too. * Posted by: lynne_s z5ny (My Page) on Mon, Sep 9, 02 at 22:23 I remember planting potatoes on my grandfather's farm in the early spring when i was about 4 years old. We weren't just planting a little garden patch...I swear this field must have been at least an acre. I remember the fun we had, laughing and running around in the dirt...getting dirty, but it was ok..we were doing something productive. I remember Grampa explaining the different types...we even planted purple potatoes from Russia. Later in our visit to his farm my brothers and sisters and I helped plant the seeds that would become carrots, corn and beans. I remember trudging through the brambles in search of the elusive blueberry bushes...after a morning of picking berries, we'd stop and have lunch...Grampa would take a fishing line and hook out of his pocket and catch small trout from a nearby stream and we'd roast them on a stick over a fire...just like a hot dog. He amazed me...the man could survive in the wilderness with nothing, and probably live better than most of us do today. lol The outdoors was his church; where he prayed, pondered and planned his life. My grandfather, retired by this time still loved gardening and sold his veggies every summer from his down-sized farm. We spent the entire spring and summer there. Everything we ate and drank came from that farm. I still remember how wonderful everything tasted...the taste of fresh food was foreign to me then. I went back to Grampa's farm many times until he passed...there, I worked hard, enjoyed the freedom of being in the outdoors and learned how important it was to treat our planet with respect, for it is what feeds us. It seems I forgot a lot of his wisdom until quite recently. Now that I'm a Mom of 5 boys, with many mouths to feed as well as many personalities and value systems to help develop, the things he taught me are returning. My husband and I have purchased a home out in the country trying to create an environment for our boys that my Grampa created for us...one of fresh air, sun, fun and respect for all things living...an I'm proud to say, we are well on our way! * Posted by: KCtomato1 z5/6 KC, Mo (My Page) on Sat, Sep 14, 02 at 0:36 My grandfathers both got me started. My first memory is of dark purple tulips and tulips that were taller than I. I recall what a joy it was grandpa let me pick one. Somewhere in the family, someone has a picture of it. I was 2-3. Both gardened but it was my paternal grandfather that let me try everything. He introduced me to raw veggies. I still prefer them over cooked. He would also let me in the berry patch - which is what really got me growing. He made a deal with me - if I picked 2 I could eat one. He'd go in and I would pick 'em clean of course taking the best for myself. We both walked away thinking we got the better deal. My maternal Grandfather taught me more on the "how's" rather than the "whats". He grew to sell and was not keen on kids picking things he could potentially sell. When I was small I would go out to the garden where he was working just to be with him and I'd watch. I would have worked but he wouldn?t let me. He thought I was nuts for wanting to work. He told me there were snakes in the berry patch in an "effort" to keep me out. Most the time he ran me off I was just looking for the snake. Him teaching me things came at a much older age. Im grateful for the time I did spend with them and the gift they passed on. Keith * Posted by: bizmhamama CA z10 (My Page) on Tue, Oct 8, 02 at 15:09 This answers your interest in childhood memories in a roundabout way. My parents and I immigrated to the United States when I was four years old and I never really knew my expanded family. My mother, who grew up on a sugar plantation, cared absolutely nothing for getting her hands dirty. Our back yard was concrete! Her only gardening interest was roses. I became interested in indoor plants as a teenager and then became obsessed with succulents once I moved out of the house & had a patch of dirt of my own. I even wondered what it would take to go back to school for a landscaping degree, and daydreamed about owning a nursery. My maternal grandmother came to America only a few years ago. I was fairly shocked to learn that she loves gardening! She grows guava trees from seed. In her 80s, she still derives incredible enjoyment from simply watching living things grow. I realize now my passion for gardening would have been sparked much earlier in life if geography (& politics!) hadn't intervened.

there is a plant propogation book i have wherein the author describes his own mist system. that author has a large black coil of hose in the roof of his greenhouse so that water can be heated before reaching the mist nozzles. that's at least one vote for using warm water and keeping the cuttings reasonably warm as they root. just thought i would toss that in! lol. -------------------------------------------------------------------------------- Posted by: mosaic z8 LA (My Page) on Sun, May 11, 03 at 11:59 With such a setup you could probably root roses under mist all winter here in Louisiana. And then as an added bonus, you could save on your power bills all summer by using it to steam your veggies :) -------------------------------------------------------------------------------- Posted by: tammyinwv z6/WV (My Page) on Sun, May 11, 03 at 16:05 i have been unable to find the mist heads even within an hr from my home.Someone mentioned here they found them for .50 each.would anyone be willing to get me a couple and mail them? -------------------------------------------------------------------------------- Posted by: wild_garden virginia z6b (My Page) on Sun, May 11, 03 at 16:32 at my lowes store the mist heads where in the indoor gardening area next to the register, i doubt the people at lowes would have even know what to look for. it was with the drip irrigation supplies, as i said in the indoor gardening area next to the big outdoor area where they sell trees and things. -------------------------------------------------------------------------------- Mist heads supply source Posted by: RoseHawke 7b AL (My Page) on Mon, May 12, 03 at 10:37 For you folks that haven't been able to find the heads locally, try going to this site: Dripworks or here's a direct link to one of the pages with some heads:Misters . I just a couple of weeks ago ordered some irrigation supplies from them and received them quite quickly. About 4 days if I remember correctly. Haven't had a chance to put it together yet, which is probably just as well as the flood we had last week would've probably washed everything down the creek ;-). I also have the Melnor timer, and it does seem a bit confusing about its ability to do a mist cycle, but what you're doing is programing it to do one cycle (on in the am; off in the pm) and punching in a choice of watering pattern, in this case the off for 10" on for 2" pattern. I believe the idea behind the pattern was/is actually to help prevent water run-off when doing overhead watering by allowing the water to soak in between the on phases. I bought this particular timer though because when I looked at it my mind said "Ah! Mist!" (heh), even though the reason I bought it at the time was to keep a new patch of zoysia sod watered until it rooted in. My batteries did last all season last year, but it was only opening that valve 4x a day for 3 weeks, and then 1x every 4 days for a couple of months. I can see where a misting pattern of opening and closing that valve many times during the day may eat batteries, but as ShamanSherpa pointed out, it's still cheaper than a $100+ misting timer! -------------------------------------------------------------------------------- Posted by: patclem z7 (or 6) TN (My Page) on Fri, May 23, 03 at 8:32 Regardless of how much water it wastes, etc, I decided to experiment with misting. I am TERRIBLE at rooting cuttings. I've tried baggies. I've tried jars. I've tried special cutting trays with plastic domes. I've had one rooted cutting out of probably 50. I had the same problem finding true super-fine mist systems in the south. None at Lowe's, none at HD. They're not popular here because they don't have the same evaporating effect they have in less humid areas of the country - they make you wet here. Here's where I found mist heads. They didn't charge me anything for shipping. They were super-good to deal with online. Web Page - Phone/Fax 888-693-0578 Local/Fax (719) 495-2266 Qty: 4; Sku: 6W401; Product: Monarch Misting Nozzles M-1; Amount: $7.40 Qty: 4; Sku: 6W519; Product: Reducing Tee for Monarch Misting Nozzles; Amount: $4.40 You have to go to Lowe's or local hardware store and get a hose adapter, timers, 1/2" PVC, PVC caps, etc. I have mine set up with 2 mist heads, and about a 6' diameter section of my grass is soaked! I don't have mine on a timer yet. Results? I don't have any yet, except none of my cuttings have turned black yet. PS - I AM NOT AFFILIATED WITH THIS BUSINESS IN ANY WAY! Here is a link that might be useful: Mist Heads -------------------------------------------------------------------------------- Posted by: fuselighter 7/WA (My Page) on Thu, May 29, 03 at 21:41 I am so excited about the misting bed. I went out and bought all the supplies today. Total cost was about $15 (my husband had PVC and elbows left over from installing the sprinkler system). I would like to go to an intermittent system eventually, but for now I am going with continuous. The water bill is not an issue because we have an irrigation system (there is an annual fee but it is not based on usage). I set the whole thing up in about an hour. -------------------------------------------------------------------------------- Posted by: debbinard Z4CO (My Page) on Sun, Jun 1, 03 at 10:54 Shamansherpa -- I could not open your picture! I live in Colorado, it gets very warm middle of June (up to upper 90's) and stays low humidity. We are on outsidewater restrictions 2xweek, so I'm not sure this method would fly. Am wondering how visible this is, or if inside is an option under lights. At any rate, I would like to propigate some rose cuttings now (is this a good time?) My daughter in law is moving and would love some plants from a rose with sentimental value. Is the rooting hormone used just the usual or special for roses? Thanks Deb -------------------------------------------------------------------------------- Posted by: mytrid Zone8b Florida (My Page) on Sun, Jun 1, 03 at 13:48 Deb, Maybe you could call your water extention office and see if you can get special permission, exsplain to them how little water it uses. Yes you use rooting hormone, there are many available. Dip and grow I here is supposed to be really good. I got some of the more exspensive stuff from a friend whom bought it threw rose imporium on line. But you can always use something like dip and grow. Deanna -------------------------------------------------------------------------------- Posted by: rose_enthusiast z7 TX. (My Page) on Sun, Jun 1, 03 at 15:47 Hi there Deanna! It seems to me you've managed to help a lot of people with your invaluable info. And I would like to thank you for inspiring me to start a misting bed to root my cuttings. I have one question to add to the many others you've been getting though... What rose company is it that you get your rooting hormone from? Is it Rose Emporium or the Antique Rose Emporium? I would like to purchase this product as well, since you and this company are using this to successfully root your cuttings. Thanks Again, Carlos -------------------------------------------------------------------------------- Posted by: mytrid Zone8b Florida (My Page) on Tue, Jun 3, 03 at 1:31 Carlos, Thank you but we should all thank AngieAnders, she is the one who did all the research and work to discover this method and then post it here for us last year! She truly diserves all the credit. I just wanted to keep any new people aware that have just started rooting this year. Best of luck all and don't forget to post your sucess! Deanna -------------------------------------------------------------------------------- Posted by: epiphany z5b PA (My Page) on Tue, Jun 3, 03 at 9:28 I found the Arizona Mist system which is by Orbit as mentioned at Wal-Mart. It has 12' of tubing, end cap, six misting heads and hose adapter for $14.95. Of course, it is once again cold and wet here,......all of a balmy 56°. -------------------------------------------------------------------------------- Posted by: auntnana 6 TN (My Page) on Thu, Jun 5, 03 at 13:06 I ordered the misting heads mentioned above from Dripworks last year and they don't put out a fine mist as much as they do a fine spray/droplets. And even though I had a pressure regulator on there, I kept having a problem with the heads blowing off! (Their drippers work perfectly by the way so it's nothing against the company) I ordered foggers from Misty Mate this year and they put out a super fine fog. Perfect for propagation. They are a litte more expensive than the ones from Dripworks but worth it. And if you ask they will ship the misting heads for $1.50. I went to HD and bought a 10-24 tap and drill set (3.00) and drilled holes in my 1/2" cvpvc and the heads just screwed right in! I bought a Melnor timer at HD for $39 and it has 1 minute spray options so I've got it set for 1 minute every 10 minutes. Can't remember the model number but it's not the one on the HD website. I hope to finish my new propagation box soon. I built one on a stand this year so I can move it around easily. Wouldn't you know, HD has plastic sheeting made just for greenhouses that I used! It's not the real thick heavy stuff either. It's only 4mil and is crystal clear see-thru! Hopefully I'll be finished this week!