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- 26 Dec 2022
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Hi all.
Upstairs we have 3 radiators and a bathroom towel rack. The radiator and town rack on one side of the house work fine. The other two radiators do not.
On another job we've had a plumber mention that those two radiators probably have blocked pipes and will require floors up and troubleshooting/etc.
Trying to get some answers myself, I've closed off the flow and return pipes on one of these upstairs radiators and removed it to be flushed outside. I've then opened each pipe separately while unattached and the flow pipe does indeed provide hot water. When opening the return pipe (or what I think is the return), I also get water which eventually gets warm.
My question is, is it normal that water comes out of the return when it's opened? My assumption is yes because of the residual pressure but I'm starting to wonder if our previous DIY Homeowner made some changes and perhaps put two flow pipes into one room and two return pipes in the other.
When outside flushing it, water definitely flowed through so it's not blocked. I'm going to check the 2nd cold radiator the same as I've checked the 1st to see if it gets any hot water anyway, but I'd like to see if there are any thoughts on why each pipe seems to have flow through it when individually opened, but does not when the radiator is attached and filled? Could these be mixed up, or perhaps could the return have a one way valve somewhere on it? Are these reasonable possibilities?
Upstairs we have 3 radiators and a bathroom towel rack. The radiator and town rack on one side of the house work fine. The other two radiators do not.
On another job we've had a plumber mention that those two radiators probably have blocked pipes and will require floors up and troubleshooting/etc.
Trying to get some answers myself, I've closed off the flow and return pipes on one of these upstairs radiators and removed it to be flushed outside. I've then opened each pipe separately while unattached and the flow pipe does indeed provide hot water. When opening the return pipe (or what I think is the return), I also get water which eventually gets warm.
My question is, is it normal that water comes out of the return when it's opened? My assumption is yes because of the residual pressure but I'm starting to wonder if our previous DIY Homeowner made some changes and perhaps put two flow pipes into one room and two return pipes in the other.
When outside flushing it, water definitely flowed through so it's not blocked. I'm going to check the 2nd cold radiator the same as I've checked the 1st to see if it gets any hot water anyway, but I'd like to see if there are any thoughts on why each pipe seems to have flow through it when individually opened, but does not when the radiator is attached and filled? Could these be mixed up, or perhaps could the return have a one way valve somewhere on it? Are these reasonable possibilities?
