Very slight pressure loss

[Robert Anderson]

Hey guys I have a quick question I hope you all can help with I have Ariston class he evo 30 boiler it’s just over a year old we got 3 new tads fitted a few weeks ago as old ones were rusting at the top valves anyway we had a small leak in the pipe going into the new one which my heating engineer neighbour drained down n fixed on Saturday there, and pressure was topped up to a needle width over the 1.5 heating been on since Saturday morning on timer goes off at 6:20 n then I put on when I come in from work about 6pm I’ve been checking the pressure and since Saturday sitting st what it was filled to but today it was sitting spot on the 1.5 nearly so you think the slight drop is just settlement if air coming out the system or do you think it’s something to worry about sorry I’m paranoid it’s loosing pressure no leaks anywhere else I’ve checked all new valves and pipes when heating been off? Hoping it’s just air escaping after draining down and filling any help please?

 

[Riley]

Monitor it. Loss of under a 0.1 bar wouldn’t concern me as long as it doesn’t drop much further

 

[Robert Anderson]

Monitor it. Loss of under a 0.1 bar wouldn’t concern me as long as it doesn’t drop much further

It’s not even 0.1 it’s about the width of the needle on the actual pressure gauge so say from 1 to 0.1 is 3-4 with a of the needle well it’s only one of them would you say that’s normal for 3-4 days after filling the system after draining to repair the leak?

 

[Robert Anderson]

Should I expect a little drop over a few days if it’s just the pressure settling?

 

[Riley]

Could do. Likewise it can minutely increase. I’d monitor it over a few days

 

[dancinplumba]

Should I expect a little drop over a few days if it’s just the pressure settling?

Yes , check rads for air

 

[Robert Anderson]

Oh right so it can increase a little too then ok thanks amigo much appreciated I was worried it was expansion vessel would it be likely to go after a year n a half of months

 

[Robert Anderson]

Yes , check rads for air

All rads bled till water coming out

 

[dancinplumba]

All rads bled till water coming out

after a while, like a few days , yeah ?

 

[Robert Anderson]

after a while, like a few days , yeah ?

Sorry no on the day all rads boiling hot to be fair but I take it some air can still be trapped

 

[Riley]

I think you may be worrying about nothing

 

[Robert Anderson]

Yeh tryst me my wife and mate said the same I think I’m just paranoid we had a terrible boiler before n only lasted 4 years n they stopped making parts n my neighbour got this one n fitted it for me to be fair boiler working a treat as is hot water but I’ve since found myself checking the pressure every day n think I’m just paranoid it’s the expansion vessel or something can your boiler loose slight pressure over a year at all if so what’s a normal amount a little too uo a couple of bar over 12 months?

 

[Riley]

Is he gas safe?

 

[Robert Anderson]

Is he gas safe?

Yeh he’s has safe registers has been for a good few years that’s what he does for a living

 

[Robert Anderson]

Yeh he’s has safe registers has been for a good few years that’s what he does for a living

Gas safe registered (stupid spell check)

 

[Riley]

Right then. You are being paranoid. Yes pressure can fluctuate slightly over the course of the year due atmospheric changes and temperature

 

[Robert Anderson]

Was a new boiler n stuff n still under warranty wasn’t like a old boiler he fitted

 

[Robert Anderson]

Perfect thank you so much for all your help it’s very much appreciated

 

[Rob Foster]

Hey guys I have a quick question I hope you all can help with I have Ariston class he evo 30 boiler it’s just over a year old we got 3 new tads fitted a few weeks ago as old ones were rusting at the top valves anyway we had a small leak in the pipe going into the new one which my heating engineer neighbour drained down n fixed on Saturday there, and pressure was topped up to a needle width over the 1.5 heating been on since Saturday morning on timer goes off at 6:20 n then I put on when I come in from work about 6pm I’ve been checking the pressure and since Saturday sitting st what it was filled to but today it was sitting spot on the 1.5 nearly so you think the slight drop is just settlement if air coming out the system or do you think it’s something to worry about sorry I’m paranoid it’s loosing pressure no leaks anywhere else I’ve checked all new valves and pipes when heating been off? Hoping it’s just air escaping after draining down and filling any help please?

Have a look at MFD from Flowflex it may be an answer often small leaks will be totally undetectable as the leak evapourates. a pressure drop of 1 bar on a domestic system might only amount to less that 1 litre over several weeks and the leak might be from a rad valve, in a cavity or even inside the boiler. 67% of combi and pressure systems have this problem. I know we did some research on main st of Southport a couple of years ago
Rob Foster aka centralheatking by chance your not the Rob Anderson from Jethro Tull ?

 

[Robert Anderson]

ha ha cheers mate, no im not unfortunately that Rob Anderson lol

 

[dan_the_plumber]

Micro bubbles my friend

 

[DAVE01]

Gas safe registered (stupid spell check)

All system Boilers take a while to settle because of air so on and so forth what can happen is on a old boiler there could be a leek on heat exchanger and this would not be visible to you because when boiler fires it is then comeing of as a mist and this dryies up with heat this happens a lot .On some HE boilers because most of the parts that you use to drain down boiler to replace a part are Plastic so that's why most of us enginears drain down through PRV only problem is dirt gets under seating of PRV this can cause a leek so easey fix is replace PRV so I think you are worrying over nothing worse case is down on pressure boiler will not work fill it back up to 1.5 bar jobs a good one