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Evening Tundish is leaking on a MegaFlo UnVented tank. I have attempted to repressurise to no avail. Having tested the water dripping down, it is cool to the touch. Can I assume it is not an immediate safety concern? Is it right to assume the PRV is calibrated to 7bar / 90c and if the...

Had my CH drained, treated and refilled 2 years ago. Once back on, the system was bled a few times, the auto air valve or whatever it is did work as expected for large pockets of air. After the first year, i bled the radiators, which i only really have to do once or twice a year, but when i...

Nice Sunday afternoon spent sorting this Yes espresso brown! Surprised at the first flush. Second more yellow / orange. Drained each ground floor rad. Flushed through with mains. Then refilled 2 or 3 times. Water ended up running as close to clear as I’m going to get it without a machine...

Rads giving coffee brown water. Had our system flushed 2 years ago, first with a strong cleaner, believe he used x800. Flushed twice. Then had 2 bottles of x100 and 1 bottle of x200 added. Think there are about 21 rads. Not thought to check in a while, as its getting cold, checked for air...

Hi I need some more space in the garage and I'm wondering if I can move the garage door forward. Currently they are fitted on the inside of the garage. Therefore no flush with the brickwork. Can I move them forward to be flush with the brickwork and therefore inside the aperture? Moving...

Ah I see No I don't have one fitted at the moment. I assume you would fit a simple gate valve on the flow to close down and slow the flow through the coil to stop it whizzing around too quickly? Yes both pump valves fully open

I've narrowed down the pump noises I'm experiencing to being exclusively related to heating the hot water tank. I used have an overlap of heating hot water and central heating but I've since separated the timings and it seems better this way but I noticed it's the hot water is the cause of...

Should add cavitation, fizzing through the pump seems worse when just doing hot water cyclinder.

Still trying to tackle issues of - running water noises through the boiler - trickling noises through the boiler - gurgling sounds usually when turning on - pump making fizzing noises - potentially cavitating in the pump The pump has been tried on 1 and 2 with no difference apart...

Would epoxy putty be suitable for this tiny leak? I only get a few beads of water but I was thinking of cleaning up the pipe and applying some of this putty. Sound ok? It's a mains feed to dhw cyclinder. Thanks

Thank you At pump fixed speed 2 the boiler does seem happier. It will happily run for 30 mins without cycling and virtually no kettling. The downside is plenty of crackling / gritty sounds and surging through the pump originally what i wanted to tackle. I may go ahead and fit a...

As a quick test I recorded the current lock shield positions and changed all the settings based in where the rads are in the loop. As a simple rule I out all the closest on 1/8 turn, going to 1/4 and 1/2 on larger ones and downstairs 1 turn on most big ones and 2/3 on smaller. And hall 3 turns...

Sorry for the delay I have been away Thank you for the explanation, I wanted to check something before I rebalance. I thought that the reason for the boiker cutting out early in pp2/pp3 mode was due to the flow being too slow to move water out of the boiker quick enough. Do you think the...

Gave it a shot on pp2 then pp3 and doesn't look like it can maintain enough flow to keep the boiler happy as it keeps cycling after 5 mins On the upside the pump has no noise almost sounds like it isn't on apart from the flashing green led. I do get the occasional surge and noise though...

Nice thank you I didn't see this mentioned in the manual I assume a good start would be pp2 as I've been ruining ok on static speed 2

Ps regarding the proportional pressure setting, I'm afraid I don't know what this means? Are you suggesting I go down to speed 1? Or can the pump be configured to auto adjus?

Unfortunately there is no gate on the return just an aav on flow and manual air vent on return And come to think of it there was loads of spilt solder dried on the old pump housing and pipes If it is indeed solder what is the best course of action here? Would a magnet on the pipe be a...

Thanks D_Hailsham i didn't realise the cold feed was isolated. I thought if cold water drawing into the cylinder was then circulated through the boiler but i assume its actually the hot water pumped through the coil which radiates heat into the surrounding tank? I did think about the solder...

sorry the pic of everything is an old pic from around 2 weeks ago - i changed the pump since to the pic in the video! :D :oops:

I haves video of the noise during hot water heating http://youtu.be/esfK0fTFosc The total install here