Stuart turner Trent ClydeCharger MJ2

[texas]

Ok thank you I will test this tomorrow 

 

I have limited memory but I think I have 2 stop cocks 

 

the water into the kitchen and I guess the outside is hard water the rest of the house is soft, 

 

I will try to investigate this further tomorrow too 

[texas]

Re the 3 floors up. 
our kitchen and outside tap which I’ve been testing are on ground floor 

We then have floor 1 then the floor with the bath which is floor 2  that I did the testing on earlier then the boiler and pump etc in the loft which is floor 3. 
 

[texas]

Trying to remember the peculiar situation we have with our piping. 
 

Essentially we live in an 1850s terrace with a kitchen added 15 years ago or so essentially in what was the garden. 
 

I believe that there is a stop cock for all the house excluding the utility room and kitchen 

 

By turning these 2 taps the water in the house seems to stop but not in the utility or kitchen.

 

One essentially isolates the tank I believe the other a plumber called the stop cock.

 

 

[texas]

To isolate the water in the “extension” ie the kitchen and utility I need to turn these 2 under the sinks. 
 

There is an external stop cock in the road too I believe 

[texas]

20 hours ago, John Carroll said:

I think you said 3 floors up?, say 8M, 0.8bar anf if the outside tap pressure was still reading 1.9bar dynamic at a flowrate of 5.2LPM then the pressure drop upstairs is (1.9-0.8)-0.6, 0.5bar. 

Maybe repeat this test if you havn't observed the outside tap pressure during this last test. its most unlikely that you have two mains supplies from the "road" so also maybe do another test where you open multiple taps to give a total flowrate of ~ 10 to 15LPM, then see what the outside tap pressure falls to during this test, that should give a good idea of the mains supply pressure drop.

 

So I turned the pump off and ran multiple taps so the water ran out of pressure. Some of the taps were literally dribbling. 
the ground floor outside tap was reading 1.8 I turned all the trickling taps off and the outside reading was 1.9 

 

 

 

[texas]

Pictures below. 

[John Carroll]

Really don't know what's going on there.

Maybe the PRV (pressure reducing valve) on the third? floor is jammed almost fully shut, its set to 1.5bar which means it should have gone fully open at any downstream pressure slightly lower than this, suggest adjusting it to it max setting, whatever that is and see what happens, the Y strainer near it should also be cleaned and the check valve should be removed in case its jammed shut.

[Nickfromwales]

5 hours ago, John Carroll said:

Really don't know what's going on there.

Yup !

 

@texas can you drain down and check that Y strainer? It's just s a case of unscrewing the big brass hex nut and then the nut and the stainless gauze sleeve will come out with it or you pull it out with your finger. Check for debris, clean, reinstall, try these test again. 

 

It seems that the outside tap is teed of the cold mains before the stopcock(s) inside the house which is normal (not unusual). That would account for how it still has pressure on it when everything's off internally and just dribbling.

[texas]

32 minutes ago, Nickfromwales said:

Yup !

 

@texas can you drain down and check that Y strainer? It's just s a case of unscrewing the big brass hex nut and then the nut and the stainless gauze sleeve will come out with it or you pull it out with your finger. Check for debris, clean, reinstall, try these test again. 

 

It seems that the outside tap is teed of the cold mains before the stopcock(s) inside the house which is normal (not unusual). That would account for how it still has pressure on it when everything's off internally and just dribbling.

Hi where is this located please? As in is it part of the pump? thanks

[John Carroll]

Its here.

[John Carroll]

Also, check direction of the arrow on the side of this check valve.

[texas]

The arrow is in that direction 

I’m a bit hesitant to do the y strainer but will attempt so this weekend