I am about to install 3 new radiators with a single drop feed, and I know I need to install a drain cock at the lowest point. But do I install a drain cock only on the inlet section of pipe to the radiators, or on both the inlet and outlet sets of pipe? Not sure whether the water will run out of all the radiators using only 1 drain cock and I could have a small section of pipe which doesnt drain? What is the recommended way of doing it? Thanks in advance.
Drain cock on inlet only or inlet and outlet?
- Thread starter dd2005
- Start date
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On either the inlet or outlet will be fine, at the lowest point.
Only one cock on the lowest of the 2 pipes. A combination of gravity and siphonage will allow most of the water to drain from the system.
You might get a small amount of water left in certain pipes because of their layout (anywhere in the system), but it's usually minimal.
You might get a small amount of water left in certain pipes because of their layout (anywhere in the system), but it's usually minimal.
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Excellent, thanks for the advice.
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