Well this may get a little long winded as our plumbing problems have been on going for a long time. For those of you who don't know we built a brand new house and moved in April 14th, 2006 so it's less than a year old. This past summer I noticed that our toilets and sinks gurgled often and in August I called the builder to send the plumbers out under our 1yr warranty to check it out. They came and basically made me feel like I was hallucinating. They said they cleaned the lines and there wasn't anything suspicious so if they gurgled again to give them a call and they would come back out, but if they were REALLY gurgling the problem would mean tearing into our foundation and we wouldn't want that now would we. No, I didn't want that so when they started gurgling again in the fall I just ignored it as the plumber said it wasn't really an issue. Well in February 2007 it could no longer be ignored as sewage started coming up the drains in our shower and bathtub...