On Mon, 14 Dec 2009 20:28:22 -0600, cavelamb
wrote:

Wayne.B wrote:
On Tue, 15 Dec 2009 07:57:57 +0700, Bruce In Bangkok
wrote:

Doesn't all this flushing tend to fill up the tank
rather rapidly

Yes it will.


And a small tank fills in a hurry.


According to my Jabsco toilet instruction manual it takes 7 pump
strokes per meter of hose. Lets see, if the hose is 1.5 inch (I
believe Skip said) then one meter is equal to about 1140 cubic
centimeters, or slightly more then a liter. So, if the hose between
the toilet and the holding tank is 1 meter long it is a minimum of a
liter a flush. If, on the other hand, it is longer then a meter and
there is an anti-siphon loop then....

It appears that bigger IS better...

Cheers,

Bruce
(bruceinbangkokatgmaildotcom)

On Tue, 15 Dec 2009 12:27:39 +0700, Bruce In Bangkok
wrote:


According to my Jabsco toilet instruction manual it takes 7 pump
strokes per meter of hose. Lets see, if the hose is 1.5 inch (I
believe Skip said) then one meter is equal to about 1140 cubic
centimeters, or slightly more then a liter. So, if the hose between
the toilet and the holding tank is 1 meter long it is a minimum of a
liter a flush. If, on the other hand, it is longer then a meter and
there is an anti-siphon loop then....

It appears that bigger IS better...

Cheers,

Bruce

From tests, my Jabsco takes 23 pumps per gallon.

We have a Lectra/San so wanted to know how much to move through for
the twice a year cleaning.

Found out something interesting the other day. Our floating home is a
'63 Pearson Rhodes 41 with the original, well maintained Lectra/San
inatalled before 1978. It is grandfathered so it's legal for us to use
in NDZ's.

Rick