Approximately, how long are these runs of pipe? When you forced Air/Water through them, did you get ANYTHING out of the opposite end? Before paying a plumber to come out and run a camera through your pipes, which usually doesn't work if the pipes are full of water, You might try a small hand held Plumber's snake. I have one that has a 1/4 inch diameter flex cable that is 25 feet long. I think they are available at most hardware stores for around $20. You can feed the cable into the pipe while turning the hand crank, and if the pipe is really clogged with debris, this should at least churn it up.