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Old 01-07-2011, 10:36 AM   #29
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Alpine Owners Club
Join Date: May 2008
Location: Vancouver, WA
Posts: 2,226
Attwood water heater tanks are aluminum coated with some kind of protection over it. Now water from all over the country is different. Some places have loads of iron in it, and that will eat off that layer over time, then cause electrolysis to attack the tank itself. If you use anti-seize compound on the threads of the anode rod it will never seize in the aluminum. But then the plastic plug is cheap, and if you regularly flush out the tank at least once a year, barring other issues it should last for a long time. The key is keeping it clean and carry an extra plastic plug with you.

I was not aware the solenoids are rated that high, nice info to have. I purchased my replacements from Aubrey’s, and tracked down the original manufacturer of them. Here is the link to the company who made them, call them and see what the replacements are, please post information here: http://www.gcvalves.com/index.htm
I did clean up the old ones and kept them as spares, but did not test them after I finished. The filters installed in the coach do not I don't think filter the water prior to it entering the solenoids, so I use an outside filter right of the water supply to stop debres that might be in the water. I started this process when we left home in late October, and I need to change it I think as it's starting to take a long time to fill the tank.

Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech
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Old 01-09-2011, 11:07 PM   #30
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Alpine Owners Club
Join Date: Aug 2007
Location: Long Beach, CA
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FWIW, my 5.7 Shurflo develops 91 psi standing pressure. My residential regulator keeps the City water down to 72. Either way, I get a GREAT shower!

2003 Alpine 40FDTS (400HP)
Long Beach, CA
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