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Old 02-01-2007, 08:16 PM   #15
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Naples, FL , Hood River, OR
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Get A Better Pump?

Instead of messing around with an accumulator tank, which is very old tech, why not look at the new generation of super quiet pumps. Some are rated at 4.5-5.5 GPM (not really necessary in an A/S) and are almost silent. No more worries about who will hear that after midnight flush !!

Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
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Old 02-01-2007, 08:28 PM   #16
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It depends on the type of tank. A true bladder tank that is essentially a balloon inside a tank. These can be on there side and will empty completely when the system is opened. Some have a diaphragm and may contain some water when the system is emptied. The diaphragm type would be better vertical.

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Old 02-01-2007, 08:32 PM   #17
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I agree the tank would be better if vertical.

But really, who's worried about the tank itself freezing? Wouldn't the ice just expand into the headspace, whether its horizontal or vertical?

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