The Captains Nemesis wrote:

Haggy, often the smell is caused by the pipe being too big.
It doesn't get full bore flow so never flushes out properly.
If the outlet is 1" use 1"ID smooth bore hose, make sure it's suitable
for the use. caravan parts guys are the best source.

Mr. H. finally got home, turns out he actually has an elbow for the hose.
Talk about procrastination! He's going to cut out the kink and put in the
elbow. We'll see how that works. I'll keep the hose size in mind, on the
other boats the hose was 1", this one is 1 1/2 or 2"!

Seahag