You can use peroxide type cleaners (Napisan type) with no worries.
Bleach should not be a problem on sanitation systems as the plastics
*should* be chemical resistant. In any case, bleach has a relatively low
attack rate on PV. Acids are never a good idea because of the damage
they do to any metal fittings (such as bronze through hulls). The damge
contines long after the inital exposure beacuse of the loss of oxidation.

Cheers MC

Seahag wrote:

DSK wrote:

Have you tried bleach?


Seahag wrote:
Yeah, among other things. It's a miracle I didn't kill the critters!

Bleach kills critters, but it's also rather corrosive on lots of other
things. My advice is to never use bleach on anything on a boat, unless
you have very carefully prepared both the object to be bleached and the
surrounding area. More trouble than it's worth IMHO. And despite all well
intentioned advice to the contrary, putting bleach down a marine head is
one of the worst things you can do to the whole sanitation system.

Did you try vinegar? Works miracles on stinky boat plumbing.


I use vinegar about once a month on the terlet, works great keeping it
clean. I know what you mean about bleach, I save it for scrubbing off my
formica counters...eats up the sponges too!

Seahag