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Posted by MIke N. on January 14, 2004 at 13:23:52:
In Reply to: Leaking Pressure relief valve posted by Bruce on December 11, 2003 at 22:10:19:
: Have a Weil Mclain mod 68. The relief valve has been leaking for 3 years straight! My local service company actually suggested a hose from the pipe to the sump pump! It has been replaced twice. Not knowing anything about boilers, the water comes in,(well water), goes thru a regulator, (been replaced), and in to boiler. The expansion tank keeps filling up and thats when the valve trips. The pressure gage never goes above 20psi and temp almost never above 190°. When its leaking I get a 5 gal. bucket full in 24 hours. Do I have to drain the expansion tank once a week to keep this from happening? Thanks in advance!
Looks like you are fixing the sympthms and not the problem. Looking at your note which indicated that you replaced the feedwater regulator already , that is probably not your problem. The real problem looks like you may have a expansion tank problem. May be time for a new one. Just putting a hose connection on the discharge line of the relief valve is not an answer. By the way, you may want to change the pressure gage since it does not appear to be reading correctly.
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