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Author:
Chevy-56 (TX)
Why and how would air get in hot water heater? After purging all trapped air by opening all facets, air is back and with banging pipes and spitting faucets less than a day later. House is less than nine months old and builder is trying to find a solution with no prevail. I have two 40 gallon Water Heaters is in attic and not grounded so, water conductivity electrolysis should not be a factor. Also, hot water has murky color. Any clues? To cushion water expansion due to heat, should not a little bit of air be trapped at the top of a hot water heater anyway? I do not have an expansion bladder installed and problem is never with cold water side. House is on municipal groundwater system and not on a private well with water pressure always between 50 & 65 PSI. Remember, house is new with all parties involved scratching their heads. Please elaborate on this phenomenon. Thanks in advance.
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Author:
KCRoto (MO)
I would suspect that your water is reacting with the anode rods in the tanks. Contact the heater manufacturer and tell them what is going on; they might advise you to change out the anode rods in the heaters. I am sure that they won't cover the expenses, as they can't control what is in your water. Someone else here may have seen this before, but you aren't getting air introduced into a system under pressure, and hot water tanks don't have any air inside them after they have been purged. It would be a good idea to have a thermal expansion tank installed on your cold water line. If you don't have a closed system, and you operate between 50-65 psi, you shouldn't have a problem, but if the municipality decides to increase the pressure in the mains instead of installing larger pipe when new homes get built, you may develop a problem down the road.
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Author:
KCRoto (MO)
Do you have a water softener system?
[www.pnnl.gov]
I actually think a lot of people here might like to know the whys and hows of water quality pertaining to the life of a hot water tank. p.22-25 in particular are of particular interest
Edited 1 times.
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Author:
Chevy-56 (TX)
My Hot Water Tanks are gas and not electric and not on a closed-loop system. I do not have a water softening or purifying system.
Please keep any thoughts coming. I appreciate everyone's help. Thanks again.
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