Forum Discussion

Ltrip's avatar
Ltrip
Explorer
Oct 30, 2022

Is there a back flow valve on the hot water outlet

I am winterizing. Done this many times. I flip the switch to bypass the water heater. The anode is out of the water heater. I put the tube into the gallon of anti-freeze and turn on the pump. Ant...
wa8yxm's avatar
wa8yxm
Explorer III
Nov 01, 2022
IN theory if you look at the plumbing side of the water heater you will see any check valve if installed.. alas I've never seen one so I can not testify to that.

Check valves are a pain by the way.. they clog. Stick, And so on
The two vlave system is NOT supposed to need one.. you may have a defective valve. Only the single valve system is SUPPOSED to need one.

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