Found my drain switch,but what is the blue round thing in the picture
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Did you try turning the knob or are you not near the MH?My boiler is a Truma B10
It is the drain valve for your hot water line, (red pipe).Found my drain switch,but what is the blue round thing in the picture
It is the drain valve for your hot water line, (red pipe).
Only open it a few quarter turns, otherwise it will come out completely, with it's sealing O ring attached.
Cheers,
Jock.![]()
Yes Richard, I had two of them on the Hymer, and one was leaking, hence the removal once drained down. It turned out to be the casing for the valve which had cracked, so a replacement was sourced.Talking from experience by any chance ?![]()