[Public-List] Pre-liner water tank cover leaking

mahseer at kos.net mahseer at kos.net
Tue May 3 15:02:32 PDT 2011


Roger.

  Yes the tank does need to be vented to stop a vaccum building.  My vent
hose after leaving the tank is plumbed into the fill hose just below the
deck, a small hole punched through the fill hose at the same location
stops any vaccum build up, this way no contaminated can enter the tank.

john Boor

> John,
>
> My pre liner water tank is in the same place as yours with the round
> filler
> and drainer top similar to the one Jeff describes at the fore/aft middle
> of
> the tank near the port side.  I cut a trap door in the seat between the V
> berths and installed a round, clear plastic access port in the tank top a
> few inches under the seat.  It could be used to fill the tank (more
> trouble
> but one less hole in the deck) but you would still need a separate fitting
> for outgoing water. Question, do water tanks need to be vented, suppose
> so.
>
> Roger 148
>
> -----Original Message-----
> From: public-list-bounces at lists.alberg30.org
> [mailto:public-list-bounces at lists.alberg30.org] On Behalf Of
> mahseer at kos.net
> Sent: Tuesday, May 03, 2011 3:23 PM
> To: fongemie at gmail.com; Alberg 30 Public List -- open to all
> Subject: Re: [Public-List] Pre-liner water tank cover leaking
>
> It is interesting because my pre liner boat 1969 #380 has the water tank
> in the centre below the "V" berth.  In your case create extra thickness
> over the current hole with glass then replace with a transparent cover,
> this way you can view without removing the top.
>
> John boor
> MAHSEER #380
>
>
>> Hi everyone,
>>
>> Seagrass is a pre-liner boat, and I'm using the original water tank in
>> the port side v-berth. The tank is built in to the hull and has a
>> simple 5 inch hole in the top where a bronze cover is screwed into the
>> top of the tank. Trouble is, small screws into the thin fiberglass top
>> of the tank hold poorly, and we keep getting leaks. If we fill the
>> tank from the outside deck fill we need to be careful to fill the tank
>> no more than 3/4 full or it leaks. I've taken the cover off, cleaned
>> both surfaces, re-gooped with 4200 and reattached the screws and we
>> still get leaks. The screws just don't hold well.  Note that the cover
>> includes the fill pipe, and fittings that lead to the sink.
>>
>> Anyone else go through this? have a fix?
>>
>>
>> -jeff
>>
>>
>>
>> Jeff Fongemie
>> #116 Seagrass
>>
>> http://picasaweb.google.com/fongemie
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