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The cylinder make is RMC group ultrasteel cylinders

It's a 6 bar pressure relief. I went for another issue and was shown this. The 18 litre expansion vessel is newish a year and a half old. I have g3 yes I got it with my level 3 in plumbing. I tested the pressure in the system after the pressure relief valve to be around 3.5bar. The cylinder was...

It's 6bar the pressure relief is dripping though. Not sure if it's an expansion issue. Or the pressure reducing valve. If the pressure is high after the pressure reducing valve is there anyway of telling if it's due to the pressure reducing valve being at fault or backpressure from a mixer...

Am I correct in saying a 250liter unvented cylinder should have a 25litre expansion vessel? I went to one with an 18 litre vessel in it.

So just trvs? And you don't even have to zone above 150squared meters..

Ok thanks, I'm in England.

Am I best of looking in the updated l1a regs.. if I can find.

I know part L1a for new builds required houses over 150m2 to be zoned then they changed it to a new build house whatever the size needs zoning.. I think I read somewhere they have changed it back to just houses over 150m2. Is this correct? Thanks

Did you already have good electrical knowledge before attending?

Is this city and guilds electrical diploma a worth while qualification in electrics. I'm thinking of going to college on an evening to study it.

Thanks for the detailed response maybe a course that leads me to be able to take the inspection and test and 18th addition. If there is such a thing? I have emailed colleges but not had much of a detailed response

Has anyone who is a trained plumber/gas engineer. And wanted to get some electrical qualifications gone to college on an evening to do this? I don't think you can do the full nvq without being employed as an apprentice. But can you get some worthwhile qualifications?

Has anyone used polymax fittings tried them as thought they were tapper proof but they can be unscrewed. Are they seen not as good as polyplumb grey fittings?

Would really need to be an evening course

Ideally to become fully competent in electrical work. Or as much as one can without an apprentice. Thanks.

Can anyone recommend any electrical courses for a plumber/gas fitter wanting to gain more knowledge/qualifications. I have emailed a couple of colleges that say you need to be employed by a electrical firm to by on there courses.

Are most 3 tap hole taps the same pipe centres. 200mm between the taps with the spout in the middle?

The said tap is around £500 in total, Hansgrohe.

Thanks just wondered if the is usually something to hold back on from above to remove the cartridge. And if they usually come out ok. Is around 18 years old.

Has anyone changed the tap cartridges on this tap?