Does anybody know where one can purchase MDPE pipe in the United States? My story begins with a clogged head in the aft stateroom on my maiden voyage with the new boat from Myrtle Beach to Charleston, SC my home port. The fluid level would not go down. I donned the wet gear to clean out the nasty's the previous owners had left, and took the Crown head apart. The head appeared operationally fine with a need for some new gaskets and impeller, but they were not the immediate issue. I pumped out the rear holding tank and disconnected the sanitation line at the head. I ran a snake through it around a lot of calcification and got to a hard blockage at about 7' of a 10' run. I could not clear the problem.

While looking for a boat, I went on about four Carvers including the one I purchased. Every boat we went on had a smell that I have since been told is "Potty Boat". All of the owners and brokers advised that the boats had just been closed up for a while. I can air it out, but it never really leaves its just not as bad. I did have a local sanitation contractor come on board to let me know what he thought about the clog. After an hour long sales pitch he left with his price of $6000.00 to fix it.

I have since been reading alot and have decided to replace the sanitation lines to alleviate the clog and hopefully the odor. But it appears that the sanitation lines often fail and are pricey. I want to replace the current lines with Medium-density polyethylene (MDPE). It is flexible and impervious to permeation. My problem is, I cannot find it available in 1 1/2 ID near me. Any thoughts are appreciated.