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Old 09-06-2010, 07:16 PM   #1
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Potable System Accumulator Tank

I did a search and didn't find any existing topics.
Has anybody added an accumulator tank to their potable system and if so are the results worth it?


in Denver

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Old 09-06-2010, 07:28 PM   #2
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Our coach came with one already installed and water pressure and pump operation is smoother than what we had in our fifth wheel. The fifth wheel water pump pulsated wildly in low water flow situations.

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Old 09-06-2010, 11:17 PM   #3
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I'd like to find a small tank about a half gallon as I do not have much room available for a tank.
My friend have an old TT tht has a steel potable water tank and a 12v air compressor to charge it. Works well as long as the fill cap does not leak.
I hate the water pump surging when boondocking and trying to take a shower with minimal water. Never seem to get the temperature right.
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Old 09-07-2010, 07:44 AM   #4
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We have a 3 gallon tank accumulator we bought at auction for a few bucks, but there's no reason why you couldn't build your own out of a bunch of adaptors, a length of 3" PVC and an end cap. Attach it vertically to your water lines in a spot where you have the room (I'd use a Sharkbite or similiar fitting). As long as its vertical or somewhat vertical and full of air, it will self-pressurize when the pump is on.
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Old 09-08-2010, 11:03 AM   #5
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Find a hole and fill it...

Look around your unit, there has got to be a hole somewhere behind a counter or under a seat, it does not matter if it is above or below the rest of the system, it only matters that the fill pipe is at the BOTTOM.

Once you have found the hole, next look for a tank to fit, and if a tank cannot be found, make one.

A local irrigation supply or farm service may have remnants of large PVC pipe that along with a couple end caps a tank can be made.

The diameter of the pipe to fit one dimension and the length to fit the other, no reasonable limits to the size.

Thread and tap one cap or adapt, when you tell them what you are upto they may see it as a good idea and help.

Have fun!
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