Can you turn pump speed up to III and close all other rads? Do your new pipes go up before they go down?
I have taken out the one way flow valve as I didn't like having it in for nothing or making situation worse. Haven't come across wire wool, unlikely as we cut up all the pipes manually at home from 3m lengths.What do you "mean in both directions"?. Whatever the snswer, take them off again - they are more likely to get blocked in time than help the situation.tried fitting a one way flow valve in the new rad pipes in both directions
Tony
As I read the OP, my immediate thought was teeing off the same pipe. Are you SURE you gave a flow and a return?
Other 2 options are a physcial blockage or air - could be a lump of wire wool or even sabotage at the merchants. If you pushed pipe along under the boards you can pick up garbage. Does the pipework have a high point?
I thought wouldn't make a difference but tried so many other options.What do you think of going straight from 22mm pipes to new rad ?
Should not be neccessary
Water seems to flow in new 15mm pipes so must be getting through.
Filling a circuit is not the same as circulating. You can fill through a partial blockage, but the resitance will be too great to circulate. Hence Dan's obseration and my suggestions.
new Rad bleeds no problem.Ok, stupid question time but here goes. Is the bleed valve blocked or faulty? Have you tried removing it? (I'm not sure from your original post whether you managed to actually fill the rad).
Water pressure seems pretty good as gets to bathroom towel rad, which is highest point of system. The rad is newly new but have flushed it out with hose, no rust or dirt in it.Is the water pressure high enough? is it a brand new or second hand Rad (does it need a power flush)
Not tried the speed pump, this is in the boiler which is new from last October; the new pipes go horizontal across from existing bathroom rad 15mm flow and return pipes then go straight down to new rad on kitchen corner below.Can you turn pump speed up to III and close all other rads? Do your new pipes go up before they go down?
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local