Hey ChickaDDD, I know what you mean about Chicklet's story. He sounds super natural or something. Sleeping on roof, resetting his own arm, Typhoon or something and his birthday. WOW. But like you said if it is true your are surely helping them and thats all that matters. I must have missed it when the unwelcoming committee killed a catbird chick. That is awful!!! And it is not FUN to get rid of HOSP. I dont know why they would say that and it makes me sick. I cant believe they said it was fun, that is disgusting and shows how stupid they are. I hope you dont dislike ME for it but I have seen them with my own eyes terrorize my other birds and not just the cavity nesters, but i dont enjoy it. I just want to save my other birds. They were after Braveheart today when he and Scardycat would try to feed their babies AND they are building two nests in two of my boxes right now :-( When papa tries to bring food they jump him and fall to the ground. It is just pure harassment and today i noticed his right eye was closed up. I dont think it was the HOSP because he was fighting two mockers today too and they probably got fed up with him getting in the middle and decided to kick him around awhile. My blue is insane they are twice his size. But now he will be at risk of hawk attack because he cant see from that side. Ahhhhhhh SIGH. I am having such stress this year with the bluebirds. I love them and all the birds except the HOSP and it is hard on me because I worry so about the birds. My other little sparrows are building in my holly bush that the robins used three times this year ( they were busy ), you know the little ones that i keep blowing there little babies out of the bush. So at least i know where they are this time and wont blow them out. Birds are so funny. She fusses at me every time i go out there but then builds her nest right in my back steps. Go figure :-) Why would they kill a catbird? I dont understand that, it must have been before i joined because i dont remember seeing it. Do you know what month and maybe i can go back and find that post. That is very disturbing, maybe they are just animal killers? Maybe they do enjoy it. They almost had me convinced that the house wrens were evil till Bet got on there. Maybe they kill all birds except bluebirds. That's sick :-( Well im glad you didn't have any little jets get confused and end up in your house today :-) Maybe they realized that outside is where they belong. Hopefully for you and your families sake. All summer without air conditioning is a horrible thought for me. You are a very strong and sweet person to sacrifice your comfort for the little jets. I bet Daisy was hot too with all that hair. My Mary is very hairy like that ( 4 layers of fur ) and she doesn't even like to be outside in the summer. We are very spoiled. Im glad your kitties got bored with the swifts, i know you were blaming yourself for the deaths but you didn't know they were coming so im glad all is good now :-) I better go because this is long but i know i could talk a lot more!!! LOL. She who is to long winded~~~~~~~Bonnie

It is very important that Return Air Ducts be well Sealed. Insulate them if they border hot air areas. Return Air Ducts need to be properly sized & Filter Rack sizing should be around 200 sq. ins. of area or more per ton of cooling. Follow the link for more info. udarrell _ 2007 udarrell _ 2007 Here is a link that might be useful: udarrell.com

You have no recourse against the city. The builder should take care of it if still under warrantee. The GC is responsible for the subs work. It should have been the duct guys job, but could be a grey area depending how things are built. That's when it comes back to the GC.

Also a cheap alterative to a proper return duct is the use of wall cavities between studs, and also enclosing the space between floor or ceiling joists (i.o.w., unfinished lumber), a BIG no no. Nothing wrong with this... dust settles in plenum return the same way. Now if you were using wall cavities for supply then yes that's a problem because of the resistancebut returns is fine... I would suspect you have some built up construction dust somewhere. Have you checked the furnace filter? That could have built up construction dust. I agree the returns should be vacuumed out, the supply boots maybe but unlikely. Another idea is there is a disconnect in a supply line which is blowing construction dust around.