Radiator pipe issue low flow

[Stephen Thompson]

Hi

Im hoping someone can help me with the below.

I have 3 radiators in my new house which don't get any heat. After doing all the usual stuff to try and resolve it I removed them and noticed the flow is low to them all. I then took one of the radiators off where they get heat and could really see the difference in the flow.

To me that says there is a blockage somewhere, but if it was blocked wouldn't the others have an issue to since its on a loop?

If it does sound like a block is there a way to get rid of it without power flushing ? The pipes are plastic and not sure they would take it. The already burst when a new combi boiler was put in (used to be sytems boiler ) many thanks

 

[ShaunCorbs]

Plastic 10mm pipe ?

 

[Stephen Thompson]

Plastic 10mm pipe ?

Yeah it is. Thinking about getting a car foot pump and blasting the pipe once or twice with that.

 

[ShaunCorbs]

Hose pipe on the return to a grid / drain and hose pipe water main to flow

 

[Sharp Point]

Yeah it is. Thinking about getting a car foot pump and blasting the pipe once or twice with that.

Problem with that, is you could either move the blockage to else where, blow a fitting off if it’s old plastic pipe and finally move some debris and compress it even more severely.
This is why microbore is totally pants.

 

[Stephen Thompson]

Problem with that, is you could either move the blockage to else where, blow a fitting off if it’s old plastic pipe and finally move some debris and compress it even more severely.
This is why microbore is totally pants.

Would a hose pipe flush do any different though?

 

[Sharp Point]

Would a hose pipe flush do any different though?

Maybe, have you thought a chemical approach to tackle it?

 

[Stephen Thompson]

Maybe, have you thought a chemical approach to tackle it?

Had some chemicals added when the boiler was fitted a month ago, so I don't think it'd work

I'll try the hose pipe approach

Thanks for the help