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Old 24-06-2014, 17:18   #1
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Location: Jacksonville, FL
Boat: Foutaine Pajot, Athena 38
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Installing Holding Tank

Installing a holding tank on my Athena, no response from the factory or the manufacture of the head so I'm hoping to get some information here.
Installing the tank where I have been told the factory installs them, up next to the anchor locker which is about 6 foot above the head. This should gravity drain to the thru hull but poses some other issues. The boat originally had two water tanks, one each side of the anchor locker. I've pulled the old water tank and working on mounting the new holding tank. The main question I have is about a check valve or shutoff valve next to the head before it starts going up hill.
Does anyone know if an extra check valve is installed by the factory or know it it's necessary? I was thinking a shutoff valve next to the head would allow the head to be worked on or replaced without having whatever is in the pipe/hose running out. Any suggestions on what kind of valve and best source? Using a combination of 1.5 inch PVC and trident hose for the plumbing.

Thanks,
Mark
S/V Charabia
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Old 24-06-2014, 19:42   #2
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Installing Holding Tank

Try to stay with PVC, because being that your pumping uphill that means the pipe / hose will always be full and I think that would make hose permeate much quicker?
I'd put a PVC ball valve in, even with a Joker valve wouldn't it have a tendency to flow back into the bowl unless the valve was shut?
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Old 24-06-2014, 21:23   #3
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Boat: Fountaine Lipari 41 Evolution
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Re: Installing Holding Tank

Certainly on our Lipari they fit a non return valve called a RM 69. Supplier in OZ qldsales@rwbmarine.com.au in Australia, not sure elsewhere.
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Old 25-06-2014, 08:48   #4
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Re: Installing Holding Tank

Thanks DOD42! Exactly the kind of information I was looking for.

Mark
S/V Charabia
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Old 25-06-2014, 15:58   #5
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Re: Installing Holding Tank

I put more photos of the Lipari setup here

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