Hoping someone might have some ideas on this one. Apolgies for the long first post!
Moved into our house in May this year, water pressure has been good since we moved in (And also when checked at viewings 3-6months beforehand). But in the last 3 weeks the mains pressure has dropped out to half what it was. I have an RO system for work which needs a minimum of 55psi to work correctly, previously the pressure was hitting around 65psi with the normal gate valve opening on the RO. Now it just about gets pasi 30psi. It is also noticeable in the house, especially if two taps are on at once etc.
Had anglian water out today to check, says no leaks on the mains. He also said no leak on the pipe to the property (though not sure how he can check this in a row of 3 houses feeding off the same street mains feed as surely someone may have been using somehting). He tested the pressure at the street mains as 3.5bar/50psi static and 3 bar/43psi dynamic with a flow of 25lpm. Says thats the same as someone else had measured back in May at a suspected leak. So how come at that same time in May I was getting 65psi? On asking him the question he pretty much made his excuses and left, probably on account of not wanting to stand around in the rain for much longer...
I know the readings are technically within spec, but I wondered if anyone had any suggestions on any further investigation I could do to try to find the issue? As it is effecting my work (I need a supply of purified water from the RO). At first I did wonder if the shared feed from the 3 properties might have an issue, but the pressure drop is constant, whether I try the RO in the morning, evening or past midnight, and didnt happen for the last 5 months.
One thing I did notice when I had the higher pressure, is every now and again there was a split second 'hiccup' where the pressure gauge would drop 10psi then back again, almost like letting a bubble through the system or a vacuum releasing. It isn't an issue with the stopcocks either, either internal or on the meter as the issue is on both a metred internal and unmetred external feed to the property. I was also told the water here is gravity fed rather than pumped, so no problem from that side of things.
Any ideas would be much appreciated!
Moved into our house in May this year, water pressure has been good since we moved in (And also when checked at viewings 3-6months beforehand). But in the last 3 weeks the mains pressure has dropped out to half what it was. I have an RO system for work which needs a minimum of 55psi to work correctly, previously the pressure was hitting around 65psi with the normal gate valve opening on the RO. Now it just about gets pasi 30psi. It is also noticeable in the house, especially if two taps are on at once etc.
Had anglian water out today to check, says no leaks on the mains. He also said no leak on the pipe to the property (though not sure how he can check this in a row of 3 houses feeding off the same street mains feed as surely someone may have been using somehting). He tested the pressure at the street mains as 3.5bar/50psi static and 3 bar/43psi dynamic with a flow of 25lpm. Says thats the same as someone else had measured back in May at a suspected leak. So how come at that same time in May I was getting 65psi? On asking him the question he pretty much made his excuses and left, probably on account of not wanting to stand around in the rain for much longer...
I know the readings are technically within spec, but I wondered if anyone had any suggestions on any further investigation I could do to try to find the issue? As it is effecting my work (I need a supply of purified water from the RO). At first I did wonder if the shared feed from the 3 properties might have an issue, but the pressure drop is constant, whether I try the RO in the morning, evening or past midnight, and didnt happen for the last 5 months.
One thing I did notice when I had the higher pressure, is every now and again there was a split second 'hiccup' where the pressure gauge would drop 10psi then back again, almost like letting a bubble through the system or a vacuum releasing. It isn't an issue with the stopcocks either, either internal or on the meter as the issue is on both a metred internal and unmetred external feed to the property. I was also told the water here is gravity fed rather than pumped, so no problem from that side of things.
Any ideas would be much appreciated!
to be fair it was one guy by himself and the rain was at a 45 degree angle, reckon he just wanted to get back in the van ASAP.