Starboard fresh water tank vent

[stevewitt1]

Hello All. 

When I fill my aft water tank and it gets full water spits out the vent onto the cockpit floor.  I have never seen any sign of water from my vent for the forward tank.  I found this to be a stanchion vent as in my waste tank.  One difference is, the stanchion that has the waste tank vent in it also has a small hole on the lower inboard side of the stanchion for the vent to breath.
My water tank stanchion vent has NO such hole and the two lifeline passages appear to have an insert sealed through the opening.
My question:  How does the vent breath?  Should there be a hole in the stanchion?
When the tank fills, water will geyser back up but never any sign of water from the vent.

Steve

[Stu Jackson]

Steve, there should be a hole in the stanchion.  Take the cushions off the saloon starboard side and look at your water tank.  Is there a vent on the tank?

[KWKloeber]

The vent tube runs about 1/2 way between the base and 1st lifeline, (at least mine did - had to remove to weld a crack at the base.)   You can drill a 1/4" hole so the spiders can crawl in and block the vent -- using a cobalt drill, low speed, high pressure, and a cutting oil with sulpher in it to dissipate the heat.

kk

[KWKloeber]

Oh yeah also, waste vent points inboard, feesh vent points overboard.

k

[Ron Hill]

Steve : The starboard water tank vented stanchion is identical to the port side holding tank vented stanchion.
So remove the settee cushions and the cut out boards and follow the 1/2" hose vent to the base of the stanchion.

Also both vented stanchions should have the vent hole to the inside.  The vent hole should be about 3/4" high up from the base of the stanchion.

A thought

[patrice]

Hi,

You get water comming out from the vent at the back water tank, the vent is lower than the intake.
The vent from the front tank is higher than intake, so you won't get water comming out from this one.

This could be the reason.

[Ron Hill]

Pat & Guys : If you happen to hold a hose against the fill fitting that is filling (with pressure) the starboard tank will over fill and water will squirt out of that hole in the starboard stanchion!! 

[Ken Juul]

my boat came with the vent holes outboard.  Maybe a PO changed them, but I don't think so because the life lines look original.

[mregan]

I got rid of the vented stanchion and put a thru hull right below the rub rail.  Tied both tanks into the same vent line.