HOT WATER HEATER

The Tank HOT WATER HEATER

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  • #16006
    Jackie
    Participant

    HELLO – HAVE A SITUATION THAT I WOULD APPRECIATE ANY COMMENTS OR SUGGESTIONS. THIS IS SITUATION – LARGE WEEKEND HOME – WELL WATER: NO BACTERIA: SOFTENED – 2 ELECTRIC 80 GALLON “STATE” HOT WATER HEATERS IN SERIES WITH RECIRCULATING PUMP AND 100 MESH (150 MICRON) FILTER IN RECIRC LINE. THE PROBLEM: BLUISH, GREY, “PASTEY” SUBSTANCE BUILDS UP IN FILTER SCREEN AND MIXING VALVES ON HOT SIDE – SO MUCH THAT SHUTS HOT WATER DOWN AFTER APPROX 3 WEEKS. STATE RECOMMENDED CHANGING MAG RODS TO KA-90 ANODE RODS AND FLUSH SYSTEM WITH DESCALER AND SHOCK CLORINATED LINES. AFTER ABOUT 3 WEEKS SAME SITUATION OCCURRED. THE MATERIAL WAS TESTED AS ALUMINUM AND COPPER. ANY SUGGESTIONS OTHER THAN REMOVING RODS?
    THANK YOU

    #16007
    Randy Schuyler
    Keymaster

    Consider putting a spring check valve on the recirc line. You can see an example in the commercial water heating section. If that doesn’t solve it, check to see if you have aluminum anodes (flat hex nut) and if so, change to magnesium. KA90 anodes are mostly aluminum, by the way.

    Randy Schuyler

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