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I agree. The instructions are poor, but do show the typical layout drawing of discharge pipe to tundish to a gulley and the D2 sizing formula.
I think you are being to generous to the installer. So what if the instructions are poor? Nobody here rushed off to Google a decent installation diagram before coming to the conclusion that that is a gash install
 
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Whats the point of paying 250quid to do G3 if people can get away with work like that
Mind you, they probably have their G3

Maybe he was just having a bad day?

So we can do it properly and should the worst happen it doesn't blow up and kill someone then saves going to prison for manslaughter.

I don't think he was having a bad day more like a bad 2 hours. Lol
 
I think you are being to generous to the installer. So what if the instructions are poor? Nobody here rushed off to Google a decent installation diagram before coming to the conclusion that that is a gash install

I don't want to really make an excuses for the installer. He is obviously not a real plumber and definitely knows little about unvented units. But I was surprised to see the instruction book was so poor and with few diagrams. I would like to see the customer taking this to court if needed, but he just wants anything fixed. That's the sort of bodge job that should be shown to a court. I am going back today to fix the heating fault and I will take another look at discharge outlet and if the combination valve is elsewhere.
 
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I have now had a good look at it all.
Here is a photo of below the kitchen sink. As a couple suggested, - the combination valve has been fitted at sink.
The pressure relief valve just left to flood the new kitchen.
Also note the gate valve to do the entire mains, rather than a proper stopcock.
image.jpgimage.jpg


And I had a close look at 22mm hep discharge pipe in attic. It actually just goes through a piece of 40mm waste pipe lying between the joists and sticks out the end and against the felt of the roof, still very much inside the building as you can see! I have told customer to get compensation.

image.jpg
 
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Oh dear. Poor customer.
Have they divulged how much they paid for that abomination? ?

No. They got a builder to take all the renovations including plumbing & heating. I advised that it needs a few hundred pounds to be worth doing and builder should pay up.
Apparently builder never has used this "plumber" before.
For me to put a proper discharge pipe in and remove the combination valve and fit it properly at unit plus fit a PRV at sink to keep all cold supplies balanced, etc, etc, will not leave me happy with it all. I am thinking that tank sitting on joist should have been supported better, plus all those pipes unclipped in mid air ain't good. Perhaps a plywooded stud wall built would have been sensible to fix everything to.
 
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Load of rubbish. It isn't going to blow up though is it. Since when has an unvented cylinder ever blown up - never. More chance of Leicester City winning the Premiership
By all means, take a skill/knowledge assessment but why do you have to keep renewing?
The cylinders haven't changed in 5years. Its a racket
 
Load of rubbish. It isn't going to blow up though is it. Since when has an unvented cylinder ever blown up - never. More chance of Leicester City winning the Premiership
By all means, take a skill/knowledge assessment but why do you have to keep renewing?
The cylinders haven't changed in 5years. Its a racket

True. But never say never. Saw a sealed heating system that blew the pipes apart when it overheated and couldn't release pressure due to a blocked relief valve.
The idiot that installed the work in my photos is not trainable and any unvented course wouldn't make him a decent person.
 
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I bring up the speil every other month. I work in a block of flats with 100 unvented cylinder in them.
Maintenance man happily works away on the cylinders. They go pop quite often, every other month one goes. Never been serviced in 15years, all sorts of things wrong with them from bad maintenance, they don't care and they know full well they should be worked on by a plumber. They've got another 45 blocks of flats, whats that 4500 cylinders

I just think its a ridiculous assessment and even more ridiculous that we take a day off work and pay 250quid for the privilege
 
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all training is backed up by horror stories of what can go wrong but in real life things seldom do
i had a gas fire in a room with no vents and the chimney had been sealed with a slate and cement 10 years previously fire was used regulary through the winter according to the trainers everyone in the house and quite possibly in the houses on either side should have died
in manny ways we over react to the few disasters that do happen by bringing in rules that cover every install
safety valve discharging internal in a ground floor kitchen with a tiled floor may cause damage but unlikley to cause harm im yet to see one spewing out burning hot water
if we applied the same standards to car related deaths we would all be back on push bikes
 
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