Ladies and Gentlemen,

My questions today are as follows

1-Do any of you have
potable water tanks in each hull and have only one potable water pump or do
you have one pump in each hull for each tank?  If one pump, what kind and does
it successfuly draw water from the opposite tank or is the pump mounted
centally onthe bridge deck?

2-If anyone has one pump what brand and type or
model is it?

3-Does anyone have particularly good experience or bad
experience with specific potable water system pumps?  If so, which ones and if
bad experience what are the problems.

Gary Hagstrom

Iron River, Wisconsin
ghagstrom@yahoo.com

We have a 55 gal plastic tank with baffle, pump, and filter, in each hull
about midship.  Pumps are mounted near the bottom level of the tanks. At our
control panel we have twin gages and a selector switch to choose which tank
to draw from. I alternate from one to the other to keep the weight roughly
the same.

Sorry, I don't know what brand of pump, probably Jabsco. This system has
worked quite well, no problems in 5000 miles.

John Wolgamott
Snow Bird
Leopard 37 Powercat

-----Original Message-----
From: power-catamaran-bounces@lists.samurai.com
[mailto:power-catamaran-bounces@lists.samurai.com] On Behalf Of Gary
Hagstrom
Sent: Sunday, February 28, 2010 10:52 PM
To: power-catamaran@lists.samurai.com
Subject: [PCW] Catamaran potable water system query

Ladies and Gentlemen,

My questions today are as follows

1-Do any of you have
potable water tanks in each hull and have only one potable water pump or do
you have one pump in each hull for each tank?  If one pump, what kind and
does
it successfuly draw water from the opposite tank or is the pump mounted
centally onthe bridge deck?

2-If anyone has one pump what brand and type or
model is it?

3-Does anyone have particularly good experience or bad
experience with specific potable water system pumps?  If so, which ones and
if
bad experience what are the problems.

Gary Hagstrom

Iron River, Wisconsin
ghagstrom@yahoo.com

Power-Catamaran Mailing List

Gary,

I have two 90 gallon poly water tanks.  One in each hull.  And two pumps,
one per tank.

The pumps are Jabsco Sensormax VSD's, and they perform very well - they keep
water pressure fairly constant.  They are diaphragm pumps.

One problem last year (the boat was new last spring).  The plastic tanks had
some poly debris left in the tanks from manufacture - small chips and
shavings, perhaps from cutting threads for the fittings.  This debris
floated inside the tanks, but when I drew one of them down the debris was
sucked up the intake tube at the bottom of the tank and through the filter
screen upstream of the pump.  The plastic shards cut up the diaphragm,
destroying it.  And of course that happened right on the start of a big trip
on the 4th of July...

Having two pumps is good for redundancy.  If you can manifold the tanks so
either pump can draw from either tanks, that's a good thing.  Being able to
draw from one tank or the other can help you control trim.  Make sure the
tanks are FLUSHED WELL before they're installed!  An inline filter before
the pump is a good idea.

Hope that helps.

Bob Deering
Juneau, Alaska