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Ive flushed my central heating system today, used fernox......after 7 years, just as a precaution, water was clear yellowish, after filling the system, still came a clear yellowish colour, when i say yellow ish i mean very pale yellow. Had a new extension a couple of years ago, and 2 pipes...

Just tried filling it. And yes i tried from menu below

Concrete

Sorry guys, chunk.... Basically a bit of the new sill broken off

Had an extension and the builder put new windows in and sills, the outside one got a chuck missing from it, i told builder not bother replacing it as ot would of meant, windows would have to be removed and didn't want the headache. I have tried to fill it using some ready mixed mortar, but it...

Fernox cleaner im going use. I was a bit concerned if i needed to drain via boiler too, so thanks for that... Easier if i don't need worry about draining from boiler.

Makes sense.... Mine all with drain points go up into the ceiling. So if im putting a cleaner in, im best opening all 3 then, just to make sure all cleaner is drained as it will be in the system. Can you confirm on draining, i need to open the drain point on the boiler pipe too??

Oh, i want drain full system, once i add fernox cleaner, do i open all 3 drain points and also the drain point on the boiler too?

In the new extension, the pipes hidden so cant see it, i know one thing, when i drained the kitchen rad from the drain point, the other 2 with the drain points still had water in them, how i know that is, when i filled the boiler with water via the loop, i went to bleed all the rads and the 2...

Why do my 3 down stairs radiators each have a drain off? I thought to drain entire system i would undo the drain off at the boiler and one radiator. Or do i drain via..... Boiler drain off and all 3 radiator drain offs?

All 3 drain points off rads and boiler then. Thanks for the help mate.

If 3 rads have a drain off.... Do all 3 need draining separately?

Boiler is downstairs. Im not sure if i drain the rads do i need do it from boiler or the rads themselves, as 3 rads have drain offs. Water comes out clean, unless i tip the rad on its side, then black comes out.

Hi, i have a Worcester combi boiler around 6 years old, radiators about 11 years old, i noticed in one radiator (when i took it off to paint) black water and tiny bits of dirt. I want to flush the system with fernox cleaner and once all good, add fernox protector. I have 10 radiators. Do i...

yes they will............like i said i have had one,and now i have not,and i can 100% tell the difference.

Hi, I had a limescale reducer fitted for a few years, which was great, I use de scale the kettle once every 2 months, then I had an extension on the kitchen, and when the pipes were altered, the reducer got thrown away, I asked my builder and he said, don't make much difference...... Well I have...

thanks stem ive set it to around 70 ish....at a guess....thanks......i did set it lower but i noticed it never kicked in for some reason,so i removed the cover blew in it and it came on.....strange.

Hi all.......ive purchased a bathroom fan with timer and humidity sensor. im concerned how to set the humidity,its 60%-90% and with my bathroom being only 6x6 wall to wall.........it gets quite a bit of steam built up before the fan kicks in,by then the tiles are dripping with...

i have L/LT/N I TAKE IT THE LT IS THE wire to remove? THANKS for both replies,much appreciated.

I have a bathroom fan with run on timer+humidity sensor. At the moment,the fan comes on when the bathroom light is switched on,runs for 2 minutes then go's off. Is there any way i can disable it,so it only works when the humidity level is up,and doesnt come on when the light is switched on ?