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Old 04-04-2011, 09:08   #1
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Join Date: Jul 2010
Location: Lake Mills, WI
Boat: O'Day 39
Posts: 159
New Holding Tank Layout

I'm rebuilding an O'day 39. I've removed the entire holding tank system and will be starting from scratch. I'm thinking of installing two Raritan Marine Elegance electric heads flushing with fresh water. The boat was originally fitted with a 15 gallon holding tank under the forward V-birth handling the port side forward head and a 20 gallon holding tank under the starboard settee to handle the starboard head located just forward of the quarter birth. My question: Would it be better to place a larger holding tank under the port settee instead of under the v birth since it would be a much shorter run and it could likely be positioned as to not hold waste in the line?
The only advantage I see with the factory arrangement is that both tanks can be serviced at the pump-out station with the boat on a starboard tie. I've never pumped out a boat so I have no idea if this is a big deal.

I have Peggie Hall's book and she likes the holding tank under the V-birth because it provides a great location for a vent. But I don't think she'd like that location for my boat since it requires a long up hill run for the waist hose connecting the head to the holding tank. I have included a layout of the boat. I look forward to any and all comments.

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Old 04-04-2011, 09:17   #2
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Location: Port Ludlow Wa
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Re: new holding tank layout

It's a dirty job that you don't want to do very often. But if it must be done you want ready access to the system components. Hose stinks (for real). The less you have the better. Just my .02.

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Old 04-04-2011, 09:21   #3
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Re: new holding tank layout

funny thing about the black sanitary hose: it smells funny when new .. almost like it already needs to be replaced. check out ocean link tanks. i have heard that there can be problems with long level runs of hose which is what you may have when sharing the same tank. also buy more hose than you think you will need.
sometimes the things that may or may not be true are the things a man needs to believe in the most.
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holding tank

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