pressure drop

Shower pressure drop if from direct to combi? Summary: Ie if I get rid of the existing indirect system (22mm pipes) , and replace it with a combi that is feeds the shower on 15mm for 3m, then 22mm for the final 3m from the existing indirect system, how is it likely to perform (ie pressure or...

hi its now come to the stage where i need a plumber to come out and diagnose the fault as most of you will know this boiler has had new parts fitted everywhere and i have even got a boiler for spares but still cant solve this pressure drop do any plumbers live in of near the dartford area that...

Hello all, Looking for some help/suggestions with my conumdrum! I have a WB 35 HE Plus installed in my 2 bed bungalow in 2005 and it has always lost pressure/water to some degree but more so lately. I have access to basement/solum and there are no leaks whatsoever on the pipework side and...

hi chaps, got a fault with my worcester 350 boiler. hot water works fine and heating switches on straight away, but after i have switched the heating off the pressure seems to drop and only when the system is recharged will it switch on as low pressure light illuminated.

Good afternoon, I noticed this a week or so ago but have kept putting it off thinking 'I'll ask later' but it's getting frustrating so let me describe the problem: One evening I go for a shower and turn it on when I suddenly realise that the shower is only working at half pressure... I...

hi went to job with vailant boiler with boilermate thermal tank have a leak on heating with pressure drop tenant tops up once a week checked usual things rad valves rads problem is all floors are chip board flooring sheets not easy to check thing last resort leak seal but would this be diluted...

Hi ukplumbers. Last week I had a new combi (worcester bosch 28i junior) installed which replaced my old hot water tank system. Everything went well except I've noticed about a 20% drop in cold water pressure to all taps/shower in the house (the main stop tap has been checked to see if it's...

Hello wisemen, I have a little problem on this installation i went on to do a cp12. i found a pressure drop that was over the permissible limits. basically its a G4 meter connected to a boiler in 22mm and 15mm to cooker and i found a drop over 4mbar. the pressure kept on dropping slowly over a...

We have recently had a new Main boiler installed. We have found that every time the boiler comes on the pressure drops and then goes back up when the goes off. I thought it was supposed to go up when the boiler fired up? Subsequently over a period of time we have to top the system up as it never...

Hi Hope someone can advise, just recently the pressure in the central heating system started to drop, the boiler is a vaillant eco TEC 837 combi. I would fill up the water via the filling loop but in the space of 3 days the pressure would drop and require topping up again via the filling...

Hello all, I'm hoping someone maybe able to offer some advice on problems with my boiler - it's a Worcester Greenstar 28i Junior approx 5 years old. I'm not a professional plumber or heating engineer although with all the hassles with my boiler I'm beginning to think I should be! I have had a...

i have a client who has an old (15 yrs +) valient combi. the hot water pressure isn't brilliant, but goes worse if another hot water tap is turned on. i realise it's a bit vague, but i havent been yet, but any info on what to look for would be most helpful.

Hi, I'm new to these forums but any help would be greatly appreciated. I have a heatline Solaris 30 combi boiler which was installed nearly 3 years ago. It's been problem free but since last weekend is losing pressure at an alarming rate. it will go from 1.5 bar to 0.2 bar in 3 - 4 hours...

Hello, I got a combi installed about 5 years ago into my 5th floor unit. Water pressure was not amazing, but always plenty good enough to shower etc. We were very happy with the combi :) In recent months water pressure has begun to drop, and in the morning, when flats beneath us (an...

Evening all, I have a Potterton Performa 28, 95% plumbed with JG Speedfit the system is 8 years old. Over the past few weeks the system has been losing pressure, done the usual of checking the rads for corrosion, rad valves all ok, lifted the inspection hatches and checked the manifolds all ok...

I'm running a new supply to two outside taps but rather than having bib taps with non return valves, I got them without and plan to fit an inline NRV in the utility room where the cold water supply is to be intercepted. One tap is about 4 metres from the valve, the other is down the garden about...

I have a Worcester greenstar CDI 42 combi boiler. It was just been serviced 2 weeks ago and is one year old. I am getting a .75 bar drop in pressure between hot (88C) and cool (48C). Is this normal because I do not remember this happening prior to the service? Thanks

Hi I have a Vailliant ecotec plus boiler its 9 mnths old and since the cold weather has been over last few weeks am having the following problem. I need to boost the pressure up every 3 days or so , at least once a week the pressure has been down to zero so the heating has never started in the...