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Hi It's a Tesy bilight 80litre tank, the importers told me the expansion vessel should be fitted on the hot side despite the manufacturers instructions saying the opposite. I spoke to the manufacturers which are a Polish company when I got it who told me that they don't bother with expansion...

Hi again, it's started releasing water from the PRV as if the tap was on full. The plumber says we need a pressure reducing valve and set it to 2 bar, the relief valve is 3bar. I want to get a decent one, my plumbers merchants do a master flow one is that a good make? Otherwise Screwfix have...

Yes Manchester It's so hard to get plumbers to even reply.

Thanks, it now has a dry trap fitted in the downpipe

He's been back and sorted it, hopefully it's all ok now, thanks for all your help.

The other thing I notice is that one of the speedfit fittings looks loose, probably from when it was vibrating

Would it normally need a trap? Any water in it would possibly dry up or go stagnant as it's not getting replaced regularly?

I checked the arrows when I bought it.

Thanks it's not got a spring valve

Hi, I've had it done now, the plumber sent me his qualifications. But doesn't this look like the PRV is installed the wrong way? The discharge is the shiny pipe. The other thing that occurs to me is that there's no trap where the copper pipe goes into the plastic waste pipe,won't that cause smells?

Thanks, I'll try to find someone else.

Hi I've just sent those pictures to a plumber thats qualified in unvented. He replied Ok mate well we have to drain it down in order to change. Gave me a price Said nothing about the way it was fitted.

Ok thanks what points

Is that ok

Is there a list of qualified plumbers with this qualification somewhere?

I have invoices from both and one left a sticker on the side of the cylinder

Ok what is the problem as I have had the first plumber that fitted it that said he was qualified, and the second one that serviced it whos advert also said he was qualified and the he specialised in unvented electric heaters.

Thanks , so looking at it is the problem with the way he left it that there's no tundish?

Thanks I'm still waiting to hear back from the plumber