[Sentoa] Fresh Water tanks on 2002 NT32

[John Gallagher]

>
> Here's a thought. We all know that water seeks its own level. So why knot
> (no pun intended) install a "T" with a riser to site glass? I just might
> do this. Wow, Could be fun.
> Jim Wood
> Why KNot 32006 Seattle


Jim

Thanks Jim
Perhaps you did not see a previous reply from Frank to which I was
preparing this response, the holidays slowed things down a bit.

Frank wrote:

"On 32-227, I cut into the crossover line just forward of the aft engine
room bulkhead on the port side and installed a tee with a threaded side
outlet. The outlet points up and I used a hose adapter and tubing to
connect to a piece of acrylic tube that runs up the bulkhead as far as
possible to make a "sight glass". You should run up to the engine room
ceiling as this will be above the level of the top of the water tanks and
allow for some overfilling without the sight glass overflowing. (Acrylic
tube is available from a plastics shop or maybe a hobby shop and should be
used instead of normal vinyl hose because the acrylic will stay clear
while the vinyl will become cloudy and hard to see through.) (The assembly
of the adapter will depend on the diameter of the acrylic tube but a 1/2"
hose barb will mate to a short piece of vinyl hose (1/2" i.d.) which will
snugly fit over acrylic tube of 1/2" o.d.) "


Thanks Frank, but I'm missing a bit of the picture. Perhaps because my
layout is a little different than yours. A line from each of my tanks runs
forward alongside the stringer. The Stbd one goes through the limber hole
in the stringer to its' counterpart in the Port stringer. There was a Tee
here to the water pump. I ran separate lines from here to a Y with valves.
I can open these to atmosphere but when calibrating the tubes I found then
not very consistent. I don't know why. Perhaps the shape of the tanks
(shallow) and motion at the dock?

I expect that your tanks were joined by a crossover tube near the rear of
the engine. I presume at one end (Port ?) of this tube there was a Tee to
the input of your pump.

If I understand correctly you installed another Tee in the crossover tube
and attached a vertical acrylic tube to it and left the top open and are
able to read the water level in it. If the top is open I would think that
suction from the pump would draw the water from this acrylic tube and then
suck air. If you get consistent results I wonder why mine don't seem to
be.

John Gallagher
RADIANT
32-068
Vancouver, B.C