Hi
I am looking to drain my microbore heating system as I want to put TRV's on the rads (there are none on at all and some of the current valves are broken anyway). On my old system at my previous house there was a small "tap" downstairs that I connected a hose to to drain the system, but I cannot find one here at all.
However, every radiator downstairs has what looks like a small drain plug on it (in-between the main part of the rad and the valve - a small t-junction with a screw on cap on it on the underneath side), so my questions that I hope someone can help with are :
1) can i drain the whole system through one of these
2) if not, do I need to drain it through all of them
3) if this only drains these rads, how else can i drain the system ?
Any advice is appreciated
(I presume that to fit TRV's on all the rads (except one) I do actually need to drain the system ?)
I am looking to drain my microbore heating system as I want to put TRV's on the rads (there are none on at all and some of the current valves are broken anyway). On my old system at my previous house there was a small "tap" downstairs that I connected a hose to to drain the system, but I cannot find one here at all.
However, every radiator downstairs has what looks like a small drain plug on it (in-between the main part of the rad and the valve - a small t-junction with a screw on cap on it on the underneath side), so my questions that I hope someone can help with are :
1) can i drain the whole system through one of these
2) if not, do I need to drain it through all of them
3) if this only drains these rads, how else can i drain the system ?
Any advice is appreciated
(I presume that to fit TRV's on all the rads (except one) I do actually need to drain the system ?)