In a message dated 98-07-03 04:38:33 EDT, juju34@TEXOMA.NET writes:

<< I have found on my boat's heads that house hold bleach is far better
 than the commercial products offered for holding tanks and porta
 potties...

 absolutely no order,
 start with a cup in water in the tank , and a couple ounces each day >>

(Kind of raw, for those who don't appreciate toilet technology)--Not a flame,
just an observation...Bleach kills all of the little monsters that dissolve
the, (how should I say...) "solids" in your commode. I don't know about the
other products, but the Bio-friendly Thetford chemical product has enzymes and
stuff to digest the "solids" and toilet paper. When you empty the commode,
only liquid. Still no smells, or unpleasantry.  Nuff-said.

gmbulley
cary, nc