Tank Valve
How to drain the expansion tank, on an oil burner, when it has no drain valve?
I have an oil burner and the pressure relief valve is leaking. I went to check the PSI in the expansion tank but when I use the tire gage water came out the air valve. How would I drain the tank? Or what else can I do?
There shoud be one, or at least a plug.
If the plug is there, prepare for a mess and take out the plug, and have the parts ready to replace it with a proper drain valve with hose threads, so you can neatly drain the unit.
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