Freshwater System

Published date: April 11, 2004
  • Boat Type: Boat Type

The Plastimo 26gal flexible tank is located below the front
dinette seat (and extends under that side of the V-berth). The
tank is filled by way of a deck fill located above the head
compartment. The 1 1/2 inch fill hose goes down the forward
bulkhead of the head compartment, pass through into the aft
dinette seat with an elbow fitting, then immediately takes a right
with another elbow, and makes its way up to the front dinette
seat.

The pump is a Jabsco/Flojet SensorMax 3.7gpm variable speed,
mounted to the aft wall of the front dinette seat. Automatic
freshwater pumps work by activating when a drop in pressure in
the line (when a faucet is opened) is detected. A normal
automatic pump runs at only full speed, so to prevent excessive
cycling of the pump, an accumulator tank is used as a "buffer"
for water pressure. The SensorMax pump eliminates the need
for an accumulator tank by using a pressure sensor tied to a
variable speed pump that only runs the pump as fast as needed
to supply the line with a constant pressure, regardless of
whether the faucet is opened just a little, or all the way.

The T fitting coming off of the output side of the pump was
mainly the result me needing a female-female coupler (I could
only find a T), but the plugged port of the T might be used for
adding cockpit shower later.

After this is a water filter (which does really seem to improve the
taste of the water... it's still a little "plasticky" but it's certainly
drinkable), then another T that sends 3/8" lines to the galley and
head faucets. The galley line is secured along its route to the
underside of the "ledge" of each seat compartment, which keeps
it (and some 12v wiring) out of the way.

The faucets are Shur-Flo (they make a similar faucet that has a
switch for turning on manually-activated pumps, but the switch
is not needed for an automatic pump installation like this). The
faucets are mounted on white light switch plates from Home
Depot.

The system works very well. My first mate was impressed... isn't
that the most important thing?

Published by: mike


Model Year: 2004

Share

Useful information

  • Perform modifications at your own risk
  • Fully research modifications before performing yourself
  • All mods are listed as is with no waranty
  • This site does not make any claims about the validity or safety of modifications posted.

Related Mods

  • Bilge pump
    Bilge pump
    Water Systems - - December 1, 2019

    I installed a West Marine 2000 GPH bilge pump with 1-1/4" hose and a float switch under the cooler. I routed the hose to the transom thru-hull. It took about fourteen feet of hose. In the right of the large picture you can see the transom thru-hull j...

  • Faucet
    Faucet
    Water Systems - - December 1, 2019

    I highly suggest this relatively cheap modification! We added an electric faucet (small pump in-line) controlled at the faucet by a turn knob, not by a button. The button ones mean you have to hold the button down, where the knob one works just like ...

  • Water tank and deck fitting
    Water tank and deck fitting
    Water Systems - - December 1, 2019

    I replaced the starboard water tank with a better one (flexible type) which is now located below the cooler chest. The filling pipe goes below the headroom through the closet in the headroom and up on deck. You see the filling fitting on the picture....