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Here are the 4 pipes that were installed. I think the 2 on the right are the cold feed in and cold balanced out. I assume the others are hot and CH but thought I'd share so you could see spacing more than anything. Thanks again Phil

Here is another

Here is one pic of pipe spacing

Hi, thanks again for your input and as one last effort niwi have tried the suggestions, I turned the CH and UFH off so only hot water on and there was definitely improvement but the cold water still didn't get warm for at least 20secs. When I then turned the UFH on and that was on throughout...

Forgot to say, what I did notice is if only one was on the warmth of the water wasn't as much, but still wasn't sure if that meant there was less pressure from the tank or less heat in the pipes but as you say, it's one of those two issues I'm trying to work out, without pulling up floorboards...

It's difficult to do as we may obviously use a toilet, tap, dishwasher etc and as soon as the cold water has been used it is the 'normal'. I did try turning off one at a time, UFH, CH, HW but still got the problem but will try again but wasn't sure if the UFH should be off at the same time as...

I'm home all day tomorrow so yes I'm going to try that, thank you. The underfloor heating is also connected so do I turn that off at the same time as the central heating or just leave on throughout? Many thanks

Thanks guys, unfortunately I can't get to the pipes unless I get all the carpet and floorboards up which is just a nightmare but surely every supply to every tap is not wrong, especially going off in different directions in the house and for 20-30secs of warm then that is why I thought it was...

Hi all, just an interesting update if anyone can add anything. This morning before any taps used I checked the warmth of the pipes. The system had been running for about 90mins. The cold inlet pipe going in to the cylinder was fairly cool but the 2 pipes above the combination valve were...

Endaxi, thanks for your input again and i will be trying the bath scenario later.

Hi, I am not aware I can isolate the HW supply, not sure if you or anyone can tell me how i may be able to do this. However, what i did just try is to isloate the cold water using the blue valve on what i think is the balanced cold water. I then turned on several cold taps and no cold water...

HI, i haven't come across the potential issue of the cross over of the mixer valves or what that means so apologies but the inlet group has already been changed once to try in case that was causing the probem. THe plumber said there was slight limescale build up (we are in a hard water area but...

Sorry, forgot to also say, the outside taps also have the same issue but i assume that is just because they are teed off the tap inside that also has the problem so not really surprising news.

Guys, thanks very much for exchanging comments as it is way beyond me but i think you seem to have come to the same conclusion but as Rob has said, the cold comes in to the valve at the top and the cold balanced out immediately of that valve to the left / behind the valve. However, what i can...

Yes from what I gather it is internal

I'm not sure if you could tell from the photo but the cold supply pipe goes in to the combination valve and then the long cold inlet pipe comes from that all the way down and goes in to the cylinder. The only pipe to come off the long inlet pipe is situated just under / after the combination...

Thanks both, I can't see the layout now as all carpeted but plumber said all spaced properly but then I suppose he would say that but obviously want to trust him. The warm water comes out of all cold water taps as I think everything comes via the cylinder.

Thanks again. I will try this tomorrow. When you say turn the bathroom tap on for a second or two at a time should I turn it on, then off, then back on etc, etc? Just want to make sure I get it correct. Also, what I did try is to turn the cold tap on in a morning when the pressure had been...

Hi, firstly thank you to the both of you for your time and replies, really appreciated. Just to confirm, the plumber is G3 qualified. I have also attached a few pictures in case it helps. THe plumber fit a pre-plumbed Tornado Indirect Unvented cylinder from Telford Cylinders, this is used to...

Hi, please please can any one help. I have read lots but may be more dangerous as I have no idea and now have bits of info. Basically when we turn on any cold tap we get cold water for about 5secs then 20-30secs of really quite warm water before it goes really cold and 'normal' and drinkable...