Blank Tank Odor/Filling & Microphor Toilet

[Curt Sprenger]

I also get a terrible black tank odor in the coach. Our coach has the
Microphor air toilet. To add water after flushing the tank, or to
completely fill the tank and flush it, I drilled a hole in the black
tank vent pipe. The hole is 5/8'. I carry a short hose to fit that hole
and attach it to a garden hose. The hole is covered with a piece of
rubber and a couple clamps. The tank vent pipe runs up behind the
refrigerator and can be accessed through the frig. side cover.

I'm experimenting to find out what works to clean the tank and get rid
of the odor. Right now the tank is filled with a baking soda/water
solution. I used two pounds of baking soda. I'll leave this in the tank
for a couple days and will be a happy camper if this helps get rid of
the odor.

I may try a Clorox solution next. Then Water Softener along with an
enzyme detergent as George Witt suggested. The theory is the softener
will loosen up built-up in the tank and coat the tank as well.

I'll post more as I go along.

Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, Calif.