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pressure

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

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  1. A

    Water pressure reduced when other appliances are on

    Hi all - hoping to get some advice here on a plumbing issue in our house. When we are showering / filling the bath and another appliance draws water (toilet cistern filling after flushing, tap being turned on or washing machine filling etc), the water pressure / flow to the other appliance...
  2. D

    Best options for finding a CH pressure leak

    I have a pressure leak on my CH system. Our piping is buried in the walls (maybe a mistake) and the room-to-room pipes are now covered by flooring making it difficult to detect any leaks if there is no yellowing happening on the ceilings below. We have noticed that we need to top up the system...
  3. C

    Water pressure for block of flats

    Hi, I will try to explain best I can, please bare in mind I am currently in a learning stage so just trying to understand the process behind things. A building with three floors and 69 rooms. How do you work out the pressure needed on the hot water system? I’m sure there is a calculation to...
  4. P

    System losing flow/pressure

    Hello everyone, I have a problem that has stumped two plumbers so I thought i'd come to a forum to see if anyone out there has had a similar problem. I live in a top floor flat with its own water supply. The tap in the kitchen has 12litres per minute flow (near where the water enters the...
  5. R

    UFH loss pressure 0 when off

    Just recently installed UFH .When all radiators and Ufh are on pressure normal floors are warm radiates are warm .When anything is turned off pressure drops to 0 with Worcester boiler flashing I have isloated it to the UFH and not boiler or radiatets could this be anything other than a leak...
  6. Z

    Faulty pressure gauge?

    Hello. Today I have installed a new radiator upstairs. A little bit bigger so I had to make new pipe work. Before that I flushed as much water from heating system as I could. Only one leg (3 legs downstairs) had valve which allowed me to flush water from radiators upstars, all of them. Only 3...
  7. D

    Low pressure on boiler, causes water leaks?

    Hello All. Sorry, im new to the forum and had a quick look around, but I couldnt find any answers. I have an HE35 Isar boiler and over the past few weeks. Ive noticed a leak coming from pipes near my toilets. Ive checked the boiler pressure and it is near zero. Could this be a the cause of the...
  8. C

    Gas Pressure Reducers: On Cylinders

    Hi! I am quickly becoming a hobbyist about all things helium. I was hoping someone would be able to answer my questions about pressure reducers. Thanks for your help! 1. Are pressure reducers universal? Can you switch them across different cylinders? 2. If not is there a system for mixing and...
  9. J

    My boiler (label of Baxi) sent a 'low water pressure' warning 0.8 bar

    Hi all, My boiler is Remeha avanta ace 28c - Avanta Ace - The Feeling of Warmth - Remeha - https://www.remeha.nl/product/avanta-ace It's 1 year old, and since I'm away for a few weeks I set it to 'frost protection' mode. This morning I woke up to a 'low water pressure' warning 0.8 bar, and since...
  10. Z

    Boiler Pressure Keeps increasing - Vaillant Ecotec Plus 838

    Hello everyone, I have a Vaillant Ecotec Plus 838. The issue i have is after the heating is switched on and then left it to cool over night i see the pressure has gone up. For example yesterday it was set at 1.3 heating was switched on and when it reached its temp it went upto 1.9 so no issues...
  11. R

    Can you have mains pressure cylinder on a back bolier?

    I have been told that I can't have a mains pressure unvented hot water cylinder with a back boiler on a wood burning stove as the heat source is uncontrollable. Is there a method to make the heat source controllable? I was imagining that if the cylinder was at its maximum temperature then if...
  12. Prof Yaffle

    Combi boiler losing pressure - No leaks, many new parts, but still...

    I'll pop this into the general advice forum as it seems the most active, but mods - feel free to move if there's somewhere more appropriate. Thank you! --- Apologies, but yet another "boiler losing pressure" thread - I've read many others, but am no closer... Not my boiler (parents), so...
  13. P

    Yet Another Boiler Losing Pressure Issue

    Looking for some help here - not my boiler, so consider me a proxy. I'm also by no means a heating engineer: I'm just looking for pointers, as the owner of this boiler is now caught firmly between "not us", "not us" and "not us" - nobody will take responsibility, and just calls into question...
  14. I

    Boiler pressure issue

    Hello people Need help git issues with my vailiant ectoec Was having plastering done removed some radiators this is when the problem started . The boiler pressure kept dropping and when heating was on pressure would go to high . Had the expansion vessel re-pressuried and pr valve changed...
  15. T

    Rainfall shower pressure problem

    Hi we have a rainfall/riser shower fitted over the bath, on a agravity fed system. We have 2 showerboosterpumps under the bath which supply the hot water in the kitchen below and the bathroom hot water. The problem is the shower won't kick in when turned on, pressure is good on all other taps
  16. M_Nash95

    Ideal System 15 losing pressure; pressure dial violently twitching

    Hi there, I am renting at the moment. Our boiler is an Ideal System 15. Within an hour or two of moving in and turning the heat on the boiler lost pressure. Now it loses pressure any time that it is turned on. If the boiler pressure is set below 1.5 bars cold it will lose all pressure in about...
  17. S

    Ideal boiler had the F1 code, so topped pressure up but code persists.

    After researching as much as I can to sort this problem, I keep reading that if your Ideal boiler has an F1 code and the pressure is low, it needs topping up. If it has an F1 code but the pressure is fine, then this indicates a potential pressure sensor fault. What if it was low (completely...
  18. E

    Hot water low temperature and pressure. (Diagram and data provided).

    Hot water temperature is low. This varies at different flow rates. At 8lpm it is around 37deg (c) At 2lpm it is around 49deg (c) 8lpm is around the max flow rate. It is around the same flow rate / temperature at all taps (upstairs bath / upstairs sink / downstairs kitchen / downstairs...
  19. P

    Loss of pressure & High Pitch Whistle in bathroom

    Equipment The shower (a cold feed electric unit) and the Kingspan tank are on the top floor of a 3 storey building. The Ideal Boiler Logic Heat 15 boiler is on the ground floor. The house is 9 years old in May. Both the boiler and Kingspan tank have been serviced in the last month. The shower...
  20. G

    Water pressure suddenly dropped

    Recently we had reason to replace our boiler. It was on the blink and you could only con it into coming on by first turning on the hot water and then the heating. Whilst waiting for the installation one day randomly the electric shower stopped heating the water. It flashed low pressure -...

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