Re: Hot Water Expansion Tanks


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Posted by Hill on December 16, 1997 at 11:04:10:

In Reply to: Hot Water Expansion Tanks posted by Sparky on December 16, 1997 at 06:42:37:

: My gas hot water tank has begun leaking, so I started looking into replacing it and found out I have to put on an expansion tank. What do these do? The instructions say only qualified people are allowed to install it. Can a homeowner install his own expansion tank? The instructions do not look too complicated, are there any tricks I should know? Can 3/4 inch copper line really hold up a 2 gallon tank? Or should I try and strap the tank to the wall? The instructions say I need to use a pressure guage. Do I leave the guage in the line or do I take it out after I get a pressure reading?

: In Washington state is it a code requirement to strap a hot water tank to the wall for earthquake purposes?

I work in WA State - King County. Code here is an expansion tank on a CLOSED system - like a private/community well. The homeowner by law can so any work they wish - they are supposed to get permits when needed (none here). I'd support the tank - though I've seen the pipe support it. The code calls for all water heaters to be strapped. Hill


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