Pressure drop in Vaillant ecoFit Pure 825- 835

[sofie]

I'm afraid she's right and you are wrong. This is what came with my EcoFit Pure 825View attachment 363935

Have you had any recurring issues with your boiler? Anyone trusted you could recommend please as all the people I've managed to get never seem to fix the issue.
Thank you

 

[Intoxicat]

Much to my amazement, I discovered that the person I bought my house from had taken out an extended warranty, and Vaillant made arranging a visit from an engineer campletely hassle free. My own plumber wasn't a Vaillant specialist and wanted to replace that part (can't remember its name), from which the water is ejected down the copper pipe. Even I could see that there was really nothing that could go wrong with that, as it's a simple mechnism with a float inside. When the Vaillant guy turned up, he has a load of Vaillant-specific testing gear that the other guy didn't have, and was able to narrow the problem down far more efficiently than simply relying on a suck-it-and-see approach.
What I did find was that even after it was fixed, I was getting the sound of running water through the radiators, even though there was no air released from any of the bleed valves. It took about a month before the noise gradually went away of its own accord.
p.s. I also used the method of tying a freezer bag around the copper outlet pipe. It's a far more scientific way of going about it than wiping your finger on it.
p.s. I tried to quote Sofie's post, but can't find any way of making it appear. Just tried again and now it says multi-quoted, but it still doesn't appear.

 

[dilalio]

It's a far more scientific way

Where's the science?

 

[Intoxicat]

Where's the science?

It's comparitive; wiping your finger around the pipe gives no indication whatsoever of the quantity which may have been ejected through the pipe in the last 24 hours. Under some scenarios the pipe outside could be wet through condensation. Tying a bag around it leaves you in no doubt whatsoever. Compared to the finger wipe it really is rocket science.

 

[dilalio]

It's comparitive; wiping your finger around the pipe gives no indication whatsoever of the quantity which may have been ejected through the pipe in the last 24 hours. Under some scenarios the pipe outside could be wet through condensation. Tying a bag around it leaves you in no doubt whatsoever. Compared to the finger wipe it really is rocket science.

Lol!
Guess when you've done hundreds it tells you a lot more, a lot quicker!

If it's letting by, it's letting by.
The amount is irrelevant.

But the best check is to remove at the PRV connection because neither placcie bag nor finger wipe is any good above ground floor or when there's internal or combined drainage.