At 12:34 12/10/99 , Bulley wrote:
>Boy, not sure which Thetford you have there, but that's not a problem on
>ours at all...

The baby, model 135.

>Also, there is no "vent" on ours. When the waste-entry gate is closed,
>(with a completely full tank or not) you can shake, tumble, and roll the
>container, and it doesn't spill a drop.

Right.  But when you build up a head of water in the bowl and then open the
flush gate, it will drive (treated) sewage through the sliding air
vent  that's part of the gate mechanism, until the levels equalize.  I've
never experienced this -- _Practical Sailor_ downgraded the Thetfords when
they looked at chemical toilets because of this "feature."  Other than that
they liked them.

david

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"