Well, the problem with sending it back is its about 3 years old. The problem just started a few days ago. We thought it was stopped up, but after removing it and checking it out thats not the case. You can blow air through it "backwards", but through the inlet it wont always flow, just have to keep turning it different directions until it flows. He has a a cutoff valve and rubber pipe on it now, and he doesnt like it!!!Peacher79 said:Most are made in China now. Quality can be good or bad. Most distributors buy from the same places so alot of times no matter who you buy them from they are coming from the same manufacture. It's tuff when you take the time to install one and it doesn't work right. i'd send the bad one back till I got a good one.