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I have a feeling it hasn't, still noticed some damp patches this morning, however I'll give it a couple of weeks for any exiting dampness to dry out. If the problem hasn't gone - I'm lost, I don't even know who to call that could help. I feel like my insurance company should be involved and...

An update, I got a builder in to investigate, lifted some of the block driveway and dug down. He couldn't find the water main pipe or kitchen sink soils pipe, so we assumed they must be entering the house from the side. What he did find was the porch downpipe not plumbed to anything! bit...

The dpc did not continue across the cavity to the inner wall. My next line of investigation was going to be the kitchen sink soil pipe. The sink is directly behind that wall the pipe goes into the ground. Also are you suggesting it could be leak anywhere along the front wall, perhaps at roof...

Correct the water marks occured from a previous issue when the downpipe became disconnected from the guttering and rain water was falling onto the wall, for a couple of weeks. The condesing boiler condensate run off is plumbed into the sink soil pipe.

I had it checked by a builder and he said it was fine, he poured loads of water down the pipe and a string with a weight attched.

No haven't changed anything to do with the drainage, it's a soakaway and only for the porch roof.

Correct, the damp stops at the DPC. One of the reasons I removed the air brick was because it looked like the dpc was missing in that section, however it is present but set back about 5-6mm from the edge of the bricks, not sure if that is an issue?

The door has just recently been replaced by a glazing company, the issue was also present before the door was changed.

Dear forum members, I have an issue with damp patches on the kitchen exterior wall which do not appear to be related to weather conditions, photos attached below . Usually the pattern is it’s very damp in the morning and then dries off during the day, so I noticed it when leaving for work in...

Dear forum members, I have an issue with damp patches on the kitchen exterior wall which do not appear to be related to weather conditions, photos attached below . Usually the pattern is it’s very damp in the morning and then dries off during the day, so I noticed it when leaving for work in...

3 wires

I think I have figured this out. The diverter valve syncronous motor (just been replaced) isn't moving the valve far enough. When CH+HW is being demanded it's in a midflow position. If I manually move the valve so that it latches everthing works fine. What would cause this? has the time unit failed?

Just a thought but does this look like a store as opposed to just a simple tank? If's it's a store where is the heat exchanger, would it be inside the tank?

What's the ultimate solution to this, new tank?

I've been monitoring the system for a few days. I did an experiemnt I set the timer on an to HW only. After 30minute everything was fine and nice hot water at the taps. I then set the timer to HW+CH and immediately the HW ouput from the tank store goes stone cold. The CH heating warms up I let...

What I can read off this component is as follows; Zilmet model z50 total capacity 0.5l preloading pressure 3.5bar expansional vessel, max working pressure 10bar, testing pressure 15bar,

Top half, there is only one pipe as you can see. It a cold feed, perhaps directly from the mains? There is no other tank in the house. I’m wondering what the dome thing is on the right, earlier pictures? I know the lower box is the thermo couple. Does HW come straight out of the store or is it...

How do you set the bypass valve correctly what is the procedure? Any comments about the installation menthod of the diverter valve motor? Thanks.

Correct me if wrong but normally I would want this closed?

Hi i'm hoping someone may be able to offer some advice. I replaced a diverter valve motor on my hot water/ central heating system. I’d been meaning to do for some time, up until now I’d been manually sliding it with the level to get HW, CH or both and this worked just fine. Now as far as I...