Quote:
Originally Posted by Tom52
Thanks for the information, so if replacing an expansion tank, should the tank be charged to 60 psi or 40 psi? I don't see an easy way to determine the system pressure to be able to match it in the expansion tank.
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As Frank said you can put a pressure gauge on your hose bib and you can increase the pressure in the expansion tank with a compressor or go down to a gas station and try to match or set just below your house pressure reading.
And if you have someone replace the tank for you make sure they set the tank pressure correct during installation.