Weird Water Pressure on Mains

[jaydebruyne]

I went to a job today of a lady complaining about the hot and cold water pressure.. She said every now and then both hot and cold stops completely then comes back on.

Naturally I think it's a gravity system and either a ballvalve issue or an air lock of some sort, or maybe a pump.

I get there and it's all on mains with a worcester 24ri jnr combi boiler.

WTF????

When I was there, the hot and cold from the kitchen tap stopped completely. 5 minutes later it's back on.

This happens to all appliances (2 showers, 1 toilet/basin and kitchen sink).

It's been going on for about a month now.

There is a storage tank on the roof but I've traced the pipes and I think it's serving the flat below her. She's on the second floor of a very small block of flats.

Any ideas?

Failing pump somewhere? Contact water board?

 

[ShaunCorbs]

if its doing it on the cold as well contact water board

 

[jaydebruyne]

if its doing it on the cold as well contact water board

Have you ever known this issue before regarding the water board?

 

[ShaunCorbs]

Have you ever known this issue before regarding the water board?

yes but i was a big complex water main (main) wasnt big enough at peak times down to dribble/off for upstairs

 

[jaydebruyne]

yes but i was a big complex water main (main) wasnt big enough at peak times down to dribble/off for upstairs

I should have asked if it happens at certain times

 

[ShaunCorbs]

I should have asked if it happens at certain times

yes from 6:8 and 16:18 prob

 

[jaydebruyne]

Yup, I was there at 5

 

[wattsie1987]

yes but i was a big complex water main (main) wasnt big enough at peak times down to dribble/off for upstairs

I'd agree the most logical course is a shared undersized main.

 

[jtsplumbing]

Did you check the internal stopcock ? could be washer moving around and stopping water, does it only happen in this flat or the others as well ??

 

[jaydebruyne]

Did you check the internal stopcock ? could be washer moving around and stopping water, does it only happen in this flat or the others as well ??

It's a lever valve.. so shouldn't be causing an issue.. nobody was in downstairs so will be going back... Water board just said there may be a pump on ground floor so will check that also...

 

[jtsplumbing]

It's a lever valve.. so shouldn't be causing an issue.. nobody was in downstairs so will be going back... Water board just said there may be a pump on ground floor so will check that also...

Don't you just love this job at times ! some days nothing but problems .

 

[kris]

Did you check the internal stopcock ? could be washer moving around and stopping water, does it only happen in this flat or the others as well ??

Second , but also external, seems like a valve is cracked open so slightly that it's nearly shut,

 

[Ch4 plumbing]

Check the isolation on the building incoming main, it may have been closed and not opened properly.

 

[kris]

Second , but also external, seems like a valve is cracked open so slightly that it's nearly shut,

Jay did u check any external valves, is it poss to isolate outside and remove lever valve to make sure the ball hasn't collapsed, or is there a check valve on mains or a filter of some kind that could be causing problems,, I wouldn't think a pump unless a private or poor main supply but u never know,

 

[jaydebruyne]

Second , but also external, seems like a valve is cracked open so slightly that it's nearly shut,

Check the isolation on the building incoming main, it may have been closed and not opened properly.

Will have a butchers, Cheers guys

 

[jaydebruyne]

Jay did u check any external valves, is it poss to isolate outside and remove lever valve to make sure the ball hasn't collapsed, or is there a check valve on mains or a filter of some kind that could be causing problems,, I wouldn't think a pump unless a private or poor main supply but u never know,

I didn't.. Will do that when I go back didn't see any NRVs anywhere ... Lever valve looks fairly new but if I can isolate outside I'll take it off and have a look

 

[Ch4 plumbing]

Water metres? They have them in mate, strange it just completely stops then starts full bore again!

 

[bright spark]

Why don't ye drop into d neighbours 2 see if they having d same problems. Could b prob with water pressure in d area

 

[jaydebruyne]

Why don't ye drop into d neighbours 2 see if they having d same problems. Could b prob with water pressure in d area

Water board said they'd not received any other calls for the area, but will def pop downstairs and talk to them and test their pressure while I'm there...