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Will I have to drain my whole heating system?

scatgo
Member Posts: 35
Will I have to drain my system to replace the section of leaking pipe between the supply valve and what i think is a pressure reducing valve? And what is the red gizmoe after the PRV?
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Comments
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is there a valve to the right if the two red valves? You need to isolate both sides.
The red valve on the right is a pressure relief valve. If you have one on the boiler you do not need that
You should however have a backflow preventer at the fill valve
And if you do need to drain down, replace the relief valve on the boiler
Buy a combination fill/ BFD
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
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Thanks for the help everyone.
Peace
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