powerflush


Postby jeffbrockbank » Thu Oct 23, 2008 4:26 pm

will a powerflush solve problems with certain radiators that are not heating up very well
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Postby plumbbob » Thu Oct 23, 2008 10:37 pm

Isn't that dependent on why they are not heating up?
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Postby Steve the gas » Fri Oct 24, 2008 4:46 am

Hi Jeff,

Possibly but expensive. Could be other things tho eg air, pump, balancing req,blockage, etc etc
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Postby Skids » Fri Oct 24, 2008 10:39 pm

Hi jeffbrockbank,

Close the Rad valves either end, loosen Rad air vent at the top, then the nuts holding the valves onto the Rad, drain down the Rad. Remove the Rad, take it outside and with the Rad on its end (one of the valve holes on the ground) stick a hosepipe in the top hole and give it a good flush until it runs clear. Refit the Rad, leave the air vent open and gently open one of the valves until the Rad is full, close the air vent, open the valves. Should get fid of all the crap.

Regards

Skids
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Postby inch high » Thu Dec 11, 2008 6:04 pm

If Skids advice is followed, should any chemicals be used to either help clearly the rads or to help prevent the sludge build up?
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Postby djkenn » Fri Dec 12, 2008 2:26 am

no, dont use a chemical if your going to hose out the gunk from the rad. the chemicals dont have enough time to dislodge the problem when you hose a rad.
if taking the rad off the wall is too much trouble you should use something like Fernox F3. drain a litre or so out your system and add the product through either a rad or the filling loop under or close to your boiler. let the system work for about a week (up to 2 if you have 8mm pipe anywhere in your system) then drain, fill, drain and fill again until all the product is has been removed. fill the system up to 1.5 bar and you should be good to go.
most companies charge around £200 for this!!!!
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