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Post by rocketmanbkk on Apr 3, 2021 6:01:39 GMT
Hello
I’ve woke up this morning to a noise!
I have the hot water on from 0530 - 0630.
The noise was like a constant groan, not loud enough to wake anyone up but when I went upstairs I could hear it in the airing cupboard.
I went outside to see if there was water coming out of the pipe connected to the prv & nothing.
I’ve been up in the loft & everything is dry up there.
I opened a hot tap & the sound went.
So, another mystery to seek out & solve!
Any thoughts on this one?
The water is red hot now so I can’t put it back on until we’ve all showered & it’s running cold. Once it’s cold I’ll put it back on & go up in the loft again to monitor it. It takes 51 minutes to get up to temp so I’ll wait up there.
Sods law it won’t happen again while I’m up there but I’ll try.
Cheers all
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Post by crowsfoot on Apr 3, 2021 8:50:31 GMT
It seems as though opening the hot tap relieved pressure so it sounds like a pressure issue, could be anything though.
These type of jobs are trial and error, but something will eventually show up it always does.
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Post by rocketmanbkk on Apr 3, 2021 10:42:25 GMT
It seems as though opening the hot tap relieved pressure so it sounds like a pressure issue, could be anything though. These type of jobs are trial and error, but something will eventually show up it always does. Yes cheers. I’ve been up into the loft. Nothing leaking, tundish is dry, all seems ok & I’ll test it again later. I’ll report back again |
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Post by DIYDafty on Apr 3, 2021 12:32:34 GMT
When we moved in we heard what sounded like an old woman groaning loudly in airing cupbaord.
Turned out to be that the water was too hot due to the cylinder stat broken (vented obviously). But even if yours is unvented could it be related to too much heat/pressure ?
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Post by rocketmanbkk on Apr 3, 2021 13:25:05 GMT
When we moved in we heard what sounded like an old woman groaning loudly in airing cupbaord. Turned out to be that the water was too hot due to the cylinder stat broken (vented obviously). But even if yours is unvented could it be related to too much heat/pressure ? It may well be Dafty. I’m using all of the hot water then I’ll test it again later. I’ll try a few things including turning the stat down a bit Cheers for your reply |
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Post by rocketmanbkk on Apr 3, 2021 17:29:38 GMT
I ran the hot water cold
Put the water on for an hour like it goes on in the morning, after 47 minutes it turned off & was red hot bit made no noise!!
I’ve turned the stat down to 57/58 & I’ll see if anything occurs tomorrow morning
The pump is still making that blooming frog noise.
I’ll record it tomorrow plus the creaking pipe & send it to Tom to post.
Cheers all
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Post by dickpuller on Apr 4, 2021 6:02:23 GMT
Have you checked your Potable EV as I described in your other thread?
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Post by rocketmanbkk on Apr 4, 2021 8:26:58 GMT
Have you checked your Potable EV as I described in your other thread? No. I’ll check it today. It’s only 6 months old so it should be ok I’ll have a look |
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Post by jcplumb on Apr 4, 2021 14:45:57 GMT
At 6:30 in the morning your local water pressure will be at about it's highest, then it lowers as more people wake up and start using water.
I've had a couple of jobs where a problem like yours only occurs at certain times of day, even had one that only happened on Saturday afternoons.
I'm not big on unvented, I leave it to the boys with tickets, but could incoming water pressure be an issue?
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Post by rocketmanbkk on Apr 4, 2021 15:21:46 GMT
At 6:30 in the morning your local water pressure will be at about it's highest, then it lowers as more people wake up and start using water. I've had a couple of jobs where a problem like yours only occurs at certain times of day, even had one that only happened on Saturday afternoons. I'm not big on unvented, I leave it to the boys with tickets, but could incoming water pressure be an issue? I’m not too sure as it’s on a 15mm main so when we checked it wasn’t too high. Yesterday & today it’s been quiet |
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Post by DIYDafty on Apr 4, 2021 15:50:12 GMT
At 6:30 in the morning your local water pressure will be at about it's highest, then it lowers as more people wake up and start using water. I've had a couple of jobs where a problem like yours only occurs at certain times of day, even had one that only happened on Saturday afternoons. I'm not big on unvented, I leave it to the boys with tickets, but could incoming water pressure be an issue? I hope you stay like that JC. Last thing I'd want is a monster in my airing cabinet for which I need to arrange and pay for some bloke every year. Royal PITA that would be. Mind you what else can you do? I've been told on here thermal stores are a waste of space and money. But say you wanted multiple showers running (if you had them). MAybe just buy bigger and maybe a second HW cylinder? In some ways a combi sounds ideal - water on demand but I'm guessing they're not powerful once you've got more than one shower running. Edit: Maybe one day when I fully, fully retire I'll create some mad plumbers paradise. Devote a room to a million tanks, pipes and valves connecting them all....  Then call out the local plumber and tell him my HW isn't working and show him into this room....  Right I'll shut up now ! |
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Post by pb on Apr 4, 2021 17:39:54 GMT
I like unvented systems - no pumps needed - drinking water at every cold tap - no loft tank and ball valve - any plumbing work needs doing and the stopcock shut the whole system down (plumbers dream). Nothing worse than getting to a big old house to replace a tap or toilet repair and there are no service isolation valves, crappy gate valves that haven't been touch since the Titanic went down - loft tanks to big and up high so you can't bung them. Unvented and combi's are the best  |
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Post by endfeed on Apr 4, 2021 22:09:53 GMT
I like unvented systems - no pumps needed - drinking water at every cold tap - no loft tank and ball valve - any plumbing work needs doing and the stopcock shut the whole system down (plumbers dream). Nothing worse than getting to a big old house to replace a tap or toilet repair and there are no service isolation valves, crappy gate valves that haven't been touch since the Titanic went down - loft tanks to big and up high so you can't bung them. Unvented and combi's are the best do you get to do commercial work,pb? Lot of my work is commercial now, with unvented system on secondary h/w, majority of the time there's isolation valves but they always leak and I end up freezing the pipe to change them. What approach would you take? Shut secondary pumps off switch off mains and drain down? |
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Post by rocketmanbkk on Apr 5, 2021 7:44:12 GMT
I like unvented systems - no pumps needed - drinking water at every cold tap - no loft tank and ball valve - any plumbing work needs doing and the stopcock shut the whole system down (plumbers dream). Nothing worse than getting to a big old house to replace a tap or toilet repair and there are no service isolation valves, crappy gate valves that haven't been touch since the Titanic went down - loft tanks to big and up high so you can't bung them. Unvented and combi's are the best I agree pb |
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Post by pb on Apr 5, 2021 9:09:53 GMT
I like unvented systems - no pumps needed - drinking water at every cold tap - no loft tank and ball valve - any plumbing work needs doing and the stopcock shut the whole system down (plumbers dream). Nothing worse than getting to a big old house to replace a tap or toilet repair and there are no service isolation valves, crappy gate valves that haven't been touch since the Titanic went down - loft tanks to big and up high so you can't bung them. Unvented and combi's are the best  do you get to do commercial work,pb? Lot of my work is commercial now, with unvented system on secondary h/w, majority of the time there's isolation valves but they always leak and I end up freezing the pipe to change them. What approach would you take? Shut secondary pumps off switch off mains and drain down? In the past I have done commercial work endfeed (still do some light commercial) and the good thing with commercial work is the plant rooms are normally very well layed out and labelled. If you are doing commercial work then a good freezing kit is a must as 99% of places do not want complete shut down unless absolutely no other way. Restaurants are the worst places to work, they don't want you there but want the problem sorted !!! I work for myself ,so I call the shots.........if it sounds a shit job I ain't doing it  |
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