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Hi.. Long time since my last post.... I have a traditional open vented system (cold water tank & Header Tank in loft, hot water cylinder, 3 way MV, 8 Rads) All has been working fine for many a year now but over the last couple of weeks, i have been getting lots of air in a few radiators...

Yeah, that's the one. Not sure how old mine is but it's still working. However, last week a brown puddle appeared underneath it! It's stopped leaking now but i think it's probably on it's way out. Out of interest, what new boiler did you replace it with? I was looking at Bosch Worcesters or...

Hi, I didn't go down the powerflushing route for the same reason. (i.e there was no guarantee it would work) I would try a standard sludge remover first to see it that helps as these are normally easier to add to your system...

In case the link above doesn't work or is removed in the future, the cure that finally resolved my cold downstairs radiator problems was to use Fernox DS40. This stuff is magic but should be used with caution as it can eat your boiler and/or pipework. You can buy it in B+Q and comes in a large...

Hi Natasha, I did manage to fix the problem. I started another thread about a related problem. See here: //www.diynot.com/forums/viewtopic.php?p=596131#596131 See the reply I posted back on: 'Wed May 09, 2007 10:00 pm' at the bottom.

Hi, I have uPVC fitted throughout our 3 Bed semi. It was fitted when we moved in over 7 years ago and didn't look particularly new then so i'm guessing it's well over ten years old. I was considering replacing some or all of the windows but only if I was likely to see improvements in...

Thanks Chaps.

Hi, What are the longest concrete fence post you can buy/order? The reason i ask is that i would like to replace a divding fence between me and my neighbour but the drop between his garden and my garden to mine is about 4ft. Once I add the drop, the fence + base (about 5-6ft) we are...

Hi, Does anybody know where you can buy radiator Bracket plastic anti rattle clips? (i.e. the plastic bits you get with radiator brackets that helps damp the radiator) Thanks Rich

Cheeky f*** :lol: Good job it was your p*****g arm and not your w*****g arm then wasn't it... :wink:

Just a quick update and hopefully some useful information for others suffering from similar problems. As i mentioned in the original post, my CH system has been suffering from circulation problems for the last 12 months or so (i.e. Cold rads downstairs that only heat up when the upstairs ones...

Just fully closed the gate value feeding the pump and fully opened it again. Burnt my p*****g arm in the process :shock:

Ok... I'll check them again. Just so i understand your thinking, do you mean the gate values with the red wheel handles? I have one before the pump and two after (one HW side of the MV and one CH side of the MV)

Well I closed them and them fully opened them. To cut a long story short, the problem started about a year ago when the downstairs rads stopped working. I though the had pump failed so i replaced it but the problem remained. On examining the pipe work near the pump and MV, i released that...

Thanks for your replies..... I don't think i'll need a 37KW unit. It's only a three bed semi!

Do you mean the valves that isolate the pump? If so, they are fully open.

Don't think i have one.

Thansk for the reply. Could a 37KW Valliant drive a manual shower at an acceptable flow rate?

I've bleed all rads and the pump. Can a bleed anything else?

I've changed it! And it's the right way round. :D I used to think it was a circulation problem on the CH side of things but even when i have just the hot water on only, the HW cylinder takes ages to heat back up. The pipe feeding the HW cylinder gets very hot though. The wife has just had...