[Public-List] Holding Tank Installation

[mahseer at kos.net]

> Thanks George,
>
> Thee tank and vent lines are now installed and I have cloned your
> installation.
> The head on this Alberg 30 has a separate 1" diameter through hull to feed
> water to the toilet. The discharge from the toilet goes up and over the
> vented loop and then down through a 1.5 inch diameter gate valve through
> hull.
> I reasoned that I could tee into the vented loop on the down side high
> enough up to permit good flow back to the tank and not the toilet. The
> pumpout line would run off this tee to the deck fitting. With all through
> hull closed it should pump out.. I do not plan to install a macerator.
> Peter
>


Peter
Why have a vent loop when you only feed the wast tank, also if you do go
with your idea remember the vent hole will still operate allowing air in
when pumping out.

John Boor
MAHSEER #380
> Original Message -----
> From: "George Dinwiddie" <gdinwiddie at alberg30.org>
> To: "Alberg 30 Public List -- open to all"
> <public-list at lists.alberg30.org>
> Sent: Tuesday, May 06, 2008 8:10 PM
> Subject: Re: [Public-List] Holding Tank Installation
>
>
>> milleype at kingston.net wrote:
>> > George,
>> > I note from the plumbing installation for the Raritan Hoding tank that
> you
>> > routed the pumpout line to the deck fitting up through the closet
>> where
>> > the vented loop had been. Is it OK to go without the vented loop. Can
> you
>> > leave the vented loop in place and tee into the loop with a y-valve?
>>
>> I suppose.  The vented loop was gone before I bought the boat.
>>
>> It seems to me that the vented loop is just to prevent back-siphoning
>> from the outlet through-hull.  Since the seacock on that through-hull is
>> only open when pumping the tank over board, it hardly seems necessary.
>>
>>   - George
>>
>> --
>>   ----------------------------------------------------------------------
>>    When I remember bygone days                         George Dinwiddie
>>    I think how evening follows morn;            gdinwiddie at alberg30.org
>>    So many I loved were not yet dead,           http://www.Alberg30.org
>>    So many I love were not yet born.
>>                 'The Middle' by Ogden Nash
>>   ----------------------------------------------------------------------
>>
>>
>>
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>
>
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