Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Why are there two sets of pipe coming out the floor?

ah, the other pipe on the left that you see is a pipe for the garden hose, it is connected to the mains, nothing to do with this. for the radiator there are two pipes, 1 each side of the radiator.
 
  • Like
Reactions: SimonG
is everyone saying don't use isolators or don't use the ones I have used? I see plenty of radiator pipe isolator's at screwfix/victoria plum etc.
 
Don’t use isolators. They aren’t designed for the heat or for the crud that goes round in the pipes
 
ok, thank you for the advice on the isolators, I will remove them. With the issue I have though, is it sounding likeley that I have a blocked/damaged pipe? should the water flow from this pipe the same as the other? it makes no difference to the flow whether or not I have the isolator installed or removed. I am really at a loss as to what to do next.
 
Apologies if I’ve missed it but is this microbore? And is the radiator a column style radiator?
 
Apologies if I’ve missed it but is this microbore? And is the radiator a column style radiator?

Hi,

It is a Revive 500h x 1100l Double Premium Radiator (P+) standard radiator with 15mm pipes (a link to the pictures is on my 1st post)
 
the pressure should be the same. When you’re testing this is it with pump running?

Hi, that is worrying :-( yes the pump is running at it's fastest speed. as the pipes are under concrete I can only get to them in the hallway. Maybe I will have to drain the system again and cut the pipes in the hallway to try and clear the blockage unless anyone thinks a power flush could work?
 
Hi, yes the previous radiator worked but was removed for 3+ months and then the new one installed after I put up a new wall and re-plastered.
 
Ok,

An update!

I disconnected the radiator again today and removed the isolator on the right hand side pipe and there was no water coming out, even though the pipe this side gets red hot and the left hand side pipe that is stone cold flows perfectly (but then gets hot very quickly when flowing into a bucket)

I connected a pipe from the mains supply to the right hand side pipe and blasted it for about 5 seconds. after the 5th or 6th time a ton of crap came out the pipe and began flowing as well as the left hand side! I filled a couple of buckets and the water became clear so I reconnected everything filled the rad and everything was working normally for about 4 hours and now I am back to square one! At least I know the issue is due to crap in the pipes I am now looking for a way to connect a foot pump to the pipe as I believe this will be more effective!
 
  • Like
Reactions: Burger
I did say first off it sounds like a blockage. A foot pump is going to be hard work to say the least. I would consider a powerflush, if done properly with the right chemicals should break down any obstruction, prevent it from reforming and improve overall performance of system. If you could isolate problem leg and blast with compressor this should clear but poses risks to any existing fittings. I’m interested to see what those with more experience suggest?
 
Another thing is a suction pump with right couplings. I’m aware there are several on market but I will suggest the ultimate suction pump, when on Facebook I’m a member of an oil fired group and the producer of this product is as well, I know his product quite well and when used correctly can suck most crap clear, amongst other functions.
 
Another thing is a suction pump with right couplings. I’m aware there are several on market but I will suggest the ultimate suction pump, when on Facebook I’m a member of an oil fired group and the producer of this product is as well, I know his product quite well and when used correctly can suck most crap clear, amongst other functions.

I am interested in what you are suggesting but haven't quite decoded what you are trying to say!
 
I did say first off it sounds like a blockage. A foot pump is going to be hard work to say the least. I would consider a powerflush, if done properly with the right chemicals should break down any obstruction, prevent it from reforming and improve overall performance of system. If you could isolate problem leg and blast with compressor this should clear but poses risks to any existing fittings. I’m interested to see what those with more experience suggest?

Hi,

I will definately be doing a powerflush but not until I am draining down the system to install a new rad in the hallway (no pipework there yet) it would be nice to see if I can clear this pipe before hand though!
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.