A real brain teaser, its got me beat

[Gray0689]

It's a tricky one all I can sugest is to seperate in to circuits and pressure test each leg
And go from there

 

[Derrick229]

It's a tricky one all I can sugest is to seperate in to circuits and pressure test each leg
And go from there

Which has already been done, several times, with the same results (they are allready on seperate circuits, with isolating valves, which are new)

 

[ferret]

Hah, not daft, done all that

I can confirm that when no 1 is open and no 2, there are NO leaks (the meter dont move)

When no 1 is open and no 3 is open, the taps are shut, the BV is shut, the meter turns, but no water shows anywhere, my tissue paper on each joint is dry

Tomorrow, when I go back, I will be disconnecting the bath/HB/WC and putting a cap on all 3, then turning on the No 1 valve, then I will know that the taps and BV arent leaking

Apart from changing the new pipe I have put in, there is nothing else I can think of

No i mean isolate the house once pressurised from valve no1 with 2&3 open so you can see if there is a pressure drop at all

 

[Derrick229]

No i mean isolate the house once pressurised from valve no1 with 2&3 open so you can see if there is a pressure drop at all

I havent got a pressure gauge, but I can have the tap connector disconected and see if the level drops (using a clear hose)
When I shut off valve no 1, wait 10 minutes, then listen for a rush of water, there isnt one (using a listening stick)

Any more suggestions for when I return tomorrow to try ?

*

 

[Gray0689]

No your not getting what where saying disconect all valves and pressure test all legs inside the house with the appliances disconected and all pipes stopended
Put a pressur gage on and put upto about 3 bar and give it an hour or 2
You have sorted that once the stopcock is off no water passing

 

[Derrick229]

No your not getting what where saying disconect all valves and pressure test all legs inside the house with the appliances disconected and all pipes stopended
Put a pressur gage on and put upto about 3 bar and give it an hour or 2
You have sorted that once the stopcock is off no water passing

Right, I open valve no 1, charge the line, check the pressure, then shut off the no 1 valve, the pressure should stay as it is, if there are no leaks, it will drop if there are

(I will have no 2 valve shut as well, I know there are leaks there, when no 2 valve is open along with no 1, the meter stops, it only happens when no 1 and no 3 are both open)

 

[Dannypipe]

This is a long shot, but are there any watering systems linked to this leg of pipe? These could be linked to a timer? Other than that I think you have all the suggestions you need. Pressurise the your pipework to a set static pressure with a guage attached, then monitor it and see if the needle drops. What a nightmare mate!!

 

[Gray0689]

Then there has to be some sort of leak on or after the 3rd valve what is attached after the 3 rd valve ??

 

[Derrick229]

This is a long shot, but are there any watering systems linked to this leg of pipe? These could be linked to a timer? Other than that I think you have all the suggestions you need. Pressurise the your pipework to a set static pressure with a guage attached, then monitor it and see if the needle drops. What a nightmare mate!!

You are telling me, its a blody nightmare, a leak with no sign

The pipe from no 3 valve goes straight to the bathroom, (it originally went into the loft, down the bedroom, under the floor, into the bathroom, but I have cut that all off now and removed it from the loft, there are open ends under the both both are open and discoonected )

no watering system

I am not sure why the pipe went into the loft, down the bedroom, and under the floor to the bathroom, when the kitchen is below the bathroom, but I think its the previous plumbers way of saving running new pipe and removing the tank and cylinder, using the cold feed from the tank to the bath and the cold feed to the tank, because the cold feed was 15mm and the feed to the bath was 22mm, BUT either way, this is now disconnected and has open ends

A new main to the bathroom has been run and its this bugger that is giving me the headache




There are just some jobs that are going to be a real pain in the bum, I have found it

 

[Derrick229]

Then there has to be some sort of leak on or after the 3rd valve what is attached after the 3 rd valve ??

Hah, you lazy bugger, I posted that all earlier, just a cold tap in the bath, cold tap in the HB and the WC (which is isolated and dry)

From valve no 3, there are 2 elbows, soldered, 1 pulled bend, 1 straight pushfit connector, 1 T which goes off to the bath, the T then goes off to the HB, then finishes with a soldered elbow to the WC which has an isolation valve on it, which is off

EVERY joint has tissue round it, which when I left on Saturday was dry

I have to leave the water on, a bloke is living in the Granny flat