Acceptable drop in water pressure levels (Boiler)

Leiva

Hi,

Have just had a new install of GFCH but Im a little concerned at the maintained level of water pressure that the bolier shows on its digital clock.

Ok so after the install the plumber filled up the system to 1.8bar, but over the past 6 days that has dropped to 1.5bar.

is this just the settling of the system?
could there be a leak under my newly laid floors?:eek:
am I worrying over nothing?
when should I be concerned?

Ta in advance.

shane0007

Could be a leak or nothing. System should be at 1.5bar anyhow. You will generally get a bit of a drop after refilling the system with oxygenated air. This air will vent out though the automatic air vents & usually a slight drop in pressure. Leave & monitor for a while longer & if still dropping, call back the installer.

Leiva

shane0007 wrote: »

Could be a leak or nothing. System should be at 1.5bar anyhow. You will generally get a bit of a drop after refilling the system with oxygenated air. This air will vent out though the automatic air vents & usually a slight drop in pressure. Leave & monitor for a while longer & if still dropping, call back the installer.

thanks for the reply.

What sort of timescale should i be working to?

like how quick does a system drop pressure and need a refill?

As I said its currently at 1.5bar...when should I be concerned time wise.

Does a leak show quicker by a pressure drop compared say to the system settling and ridding itself of extra air etc

shane0007

It's hard to say as in this weather your heating is off. Heat will shift air as warm air naturally rises & vent out at the high points. It may sit there whilst cold.

So for moment I would just monitor it. If it drops to below 1.3, then it maybe excessive. Look for signs of leaks around all areas where the installer altered pipe work.

corkgsxr

You will always have a small drop as air gets vented out the auto air vent.

But my rule for a established system is if its every 6 months dont worry. If every 2 weeks do worry.

For a new system you need to wait a week to make sure

rightjob!

could be with the heat being on now that there is a slight weep somewhere espically if theres qualpex used.

could just be air aswell in it,keep an eye on it the next while

DGOBS

Plus I always find those digital gauges (Glow worm etc) do vary a bit

corkgsxr

rightjob! wrote: »

could be with the heat being on now that there is a slight weep somewhere espically if theres qualpex used.

could just be air aswell in it,keep an eye on it the next while

Why especially if qual is used?

DGOBS wrote: »

Plus I always find those digital gauges (Glow worm etc) do vary a bit

Ya its not great at all

rightjob!

corkgsxr wrote: »

Why especially if qual is used?



Ya its not great at all

just a nut can easily be overtightend a small bit and when the heat is on changes everything,
never have that before after testing to 6 bar everythings fine but when you turn the boiler theres the odd weep on a joint

corkgsxr

rightjob! wrote: »

just a nut can easily be overtightend a small bit and when the heat is on changes everything,
never have that before after testing to 6 bar everythings fine but when you turn the boiler theres the odd weep on a joint

Can happen copper as easy as qual.

rightjob!

definately can happen copper but find its more on qualpex

corkgsxr

rightjob! wrote: »

definately can happen copper but find its more on qualpex

Sorry just dont agree. if you want total confidence in fittings put a tiny bit of hemp with the hock white. Never a leak then

rightjob!

corkgsxr wrote: »

Sorry just dont agree. if you want total confidence in fittings put a tiny bit of hemp with the hock white. Never a leak then

thats fine everyones opinion,i think its easier t swing out of a spanner on qualpex than copper