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So I should probably ask the plumber to come back? He'll just try and fob me off again.. What should I be asking him?

when you say inadequate supply pipe do you mean to the house or to the system, tap?? I don't know which supply pipe you are referring to?

Ok - so how do I find out the pressure in the system with the water running?

sorry you've all lost me? Please explain - 'Static pressure is not as important ad dynamic pressure' and 'Do not confuse pressure and flow'. I have 3.2bar static cold apparently (whatever that means?) and a 2.5 regulator - should the water be dribbling out the taps and should the shower...

I have had alot of debris in the filters in the taps - do you think debris could be the cause? Would that cause the drop in shower pressure when the tap is run?

The street pressure has been fantastic for years, it used to knock your head off when you opened a tap, you know the one - taps which drench you if you turn them on too fast. The taps not changed only the system feeding it - so I suspect it's not rubbish mains pressure. Our cold used to come...

Hi, I am a newbie and know nothing - please keep it simple :) Had a new unvented oso super s 300l (huge thing) fitted (unsed to have a gravity fed system - plumber suggested I can it changed when we had the aga removed and the immersion tank needed replacing, the loft tanks need removing...

oh - OK - that makes me feel much better! :cry: :cry: :cry: :cry:

Is it possible to notify BC at this stage and do second fix myself?

Different part of the house- for some reason he's put 4mm in one area and then 2.5mm in another - both are for the same type of light fitting??? Not sure why he's done this - only noticed the 2.5mm yesterday! He has rewired the whole house and it has now been re plastered - I have UFH...

So am I stuck with a rubbish sparky? No choice?

If I rethink the lamps - i'm not gonna get much from 2.5mm am I? I think redoing it so the transformer is next to the fitting is the best solution but my sparky will charge me extra for changing it! Regarding second fix- can I use a different sparky and can he sign off sparky #1's work?

My sparky doesn't seem to know what he is doing - he has just finished first fix. If I ask him anything regarding my concerns he basically tells me I don't know what I'm talking about - ie. he's the sparky and I shouldn't be questioning him! Can I get a different sparky in to do second fix...

That was my concern

It's under the tiles with the insulation

The wiring is in the roof - the only way to get at it to add more or adjust is to take the roof off! This is our main lighting system upstairs (the only lighting for our hallway) so obviously if it isn't up to the job I have a BIG problem!

The 300va transformer has been specified as being placed remotely from the beginning (approx 3m away). The 2.5mm wire goes between the remote transformer and the fitting itself. The fitting has always been specified as a dual wired cable type fitting to be strung between two beams - always...

Ok - so basically is no good. My sparky yesterday said he had checked it and that it was good for a remote 300va as specified. In other words he is telling me that it is fine - he will go ahead and wire it all up if I let him! What issues will this cause and how concerned should I be?

Sorry the 2.5mm wiring is between the fitting and the transformer not up to the transformer. The fitting is going on a beam and the transformer is located remotely - approx 3m away. Should have mad that more obvious sorry!

Outputting 12v Several fittings on one wire type lighting system strung between two beams has been specified with a 300va to power it. There would probably be 6 x 50w fittings or 8 x 35 w, hence the 300va transformer so we can put up to 300w of fittings on the wires without any problems...