SW800 cockpit drain hose replacement

[cogniz]

Discovered my port cockpit drain hose leaking. Replaced it with a solid wall exhaust hose that had to be badly mangled to make the fit work. Sealed well but drains slowly. And I'd guess that any leaves or debris will clog it quickly.

With that, can anyone point me to a source for a better hose solution? I tried every hose Home Depot had as well as some West Marine options...no love there.