Hello R_A_B_I_D, I have done quite fine using 4 inch tubing myself, using it as a flood and drain. I forget the exact plant spacing, but I had 12 spots evenly spaced, for 3 inch baskets, in a 9 foot long, 4 inch wide tube. Using it as a flood and drain system, I didn't need to worry about blocking the water flow as the plants got bigger using the round tubing. Once or twice I had to take off the hose from the pump, and stick a screwdriver in because roots were trying to grow throw the opening. But that only took about 30 seconds. Slotting the tube and filling it with growing media, VS making holes for baskets is really a personal choice. A slotted tube filled with growing media will take a lot more growing media than using baskets, so the cost of the growing medium is a concern to me (thus, the less needed the better for me). Also the growing media takes up space the roots could be occupying, so the more growing media, the less room for the roots. With my system, I grew 8 large pea plants (4 on each side of the tube), the 4 spots in the middle were meant for some green beans that never made it into the system. One variety of peas were about 4 feet tall and wide, the other was about 6 feet tall and over 4 feet wide. The root mass inside the tube took over 50% of the space inside the tube. Just make sure you design it in a way you can get at least one end of the tube off, or you will never get the roots out. I had to cut the tube in half, then glue a coupler between both haves with 100% silicone to be able to reuse the tube (witch I now have some peppers in). As for the choice NFT or flood and drain in a continues bed, both have their advantages and disadvantages. Either way just make sure the growing medium doesn't get too saturated, or the roots wont get enough oxygen. In a tube with baskets hanging in a tube used as an NFT, oxygen to the roots wont be so much of an issue, but water flow might. That's why I like it as a flood and drain. Though with small plants like leafy greens with a much smaller root mass, that may not wind up being a problem even using round tube, and set up as an NFT system.. My personal thought is just dive in. But don't build large setups for full scale, all out production right off the bat. No matter how much you you think about it now, there is no doubt that you will want to redesign your systems later for better efficiency. In my experience, build your systems with easy maintenance (while the plants are growing, and after) in mind. As well as make them easy to duplicate and expand on. That makes them flexible, and easy to scale up and/or down, however you wish in the future (without needing to rebuild the entire thing). Even split larger setups into multiple systems reusing the same parts (and vice versa).

randy- Yes, you were right! BUT..now that I know where it is- when I clicked on the iTunes file it opened many smaller files- in another language! How do I get from the file to the online site? I did find that I registered with the Apple site- but I can't find anywhere to login! I have been trying to find help with 'contact us', or 'support', but all I find are written answers- I can't find a place to even ask where to login- frustration...

I wasn't clear enough. The tracks were all fine and would have played thru had I let them. However, I interrupted them by going to another track and then another after I listened enough to each one to satisfy my interest. While I was doing this, I soon realized that the tracks were disappearing as I clicked on the next selected track. This effect appeared to only happen with this album and in fact when I just now attempted to replicate more track loss, the remaining tracks would not disappear on this album either. Just before my initial post I had just checked that some random albums' tracks seemed to be complete and wouldn't disappear either. The lost tracks only occurred in one or two sessions with that one album. There is an extra issue. I have several cd albums that are listed under 'various' because the lead singer shared singing with some of her well known singing friends. This album is one of those, BUT I haven't lost tracks from a couple other 'various' albums I just checked (and had similarly scanned). If anyone knows where 'various' tracks go if they loose their association, they could be there I suppose. As usual, I hadn't thought to Google this issue until I posted. I found a 37 page active chat about this and similar track loss that began in 2009 and continues to the present. I suppose this could be a random general problem. I can always re-rip the cd but I was (and am) afraid that the problem will repeat. I am still wondering if I accidently clicked on some setting that hid the tracks so they wouldn't repeat and now should change a setting that will un-hide them.

try the forums at this site they are all knowing about ipod and itunes related stuff iLounge True but you must be very patient as it might take a week or more to get a response, re post if necessary after a couple days, it has worked for me.