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vent

  1. C

    Can't find UFH manifold vent/drain valve

    Hi all, I can't locate the vent/drain valve on this manifold. My manifold resembles the "UFH Manifold RUB-RT1tm4" model on this webpage: https://www.thermo-floor.co.uk/underfloor-heating-manifolds.html I an intending to replace on the the actuator pin-valves and I think I need to drain (or at...
  2. T

    Water flowing through vent pipe over F&E tank.

    I recently took off an end stop on the vent/expansion pipe over the heating header tank. I now know why it was capped off. When the 2 way valve opens to heat the hot water, water pours out of the vent pipe. I had a heating engineer out, he said get rid, open vented systems are now obsolete...
  3. N

    Two new open vent boilers, problems ever since.

    Hi all, So I re done my house 2/3 years ago and had all my radiators taken out on the lower floor, changed to wet underfloor instead. 2 zones. 2 manifolds. As I was doing quite a bit, I’d decided to exchange the two 15 year old boilers with a pair of new ones. Vitodens 100w 35kw open vent...
  4. J

    Vent pipe - how and where should it be positioned

    Hi, I would be grateful for any advice regarding regulations on installing vent pipe. My landlord has recently hired a handy man who installed a vent pipe for him but he installed it in a way that is it placed on the outside wall, only 50cm under our window (1st floor window). It feels to me...
  5. M

    Cylinder feed and vent

    Have a ground floor hot water cylinder, want to boost hot flow to upstairs bath with inline booster pump. Can't get to pipework near bath, so wondering if I create a new dedicated vent tee'd into pipe just after it leaves the cylinder, then install pump after new vent, and cap off old vent at...
  6. C

    Soil Vent Connection

    I have to connect the UPVC pipe to the ground. There's a connection of sorts there already. The rubber gasket there has perished but I don't seem to easily find a replacement. Even if I did, the old UPVC pipe I have doesn't fit tightly in there and presumably never did. My question is, does...
  7. bfalp1

    Is a soil vent mandatory?

    My builder has removed the soil vent pipe stating that an AAV would suffice. As I have had some troubles with them I have started to question what they say so I have done a bit of digging. From the internet I don't seem to find a clear answer about this. Could you please clarify this for me? Do...
  8. J

    Vent pipe size for vented cylinder installed in 2005-6

    Hey, having searched this forum and last building regs (2000) from around that time... Any idea what the correct size is for a vent pipe for a vented hot water cylinder, gravity fed? I.e. the one that is continuously rising back up to the cold water feed tank for the cylinder? Have discovered...
  9. G

    SP140B vent pipe adaptor fitting

    Hi, ive recently purchased a Sp140b adaptor for cement pipe to 110mm plastic. When I've looked the vanes end is fine to put into cement pipe but where it has described the other end as push fit I was expecting to see some kind of o ring or seal for 110mm plastic pipe to slot into. Would I be...
  10. C

    Kitchen sink drains slow with Oateys sure vent

    Okay I'm not a plumber and I have those aav Oateys sure vent 20 DFUs and my kitchen won't drain hardly at all now and when I remove it u can hear air rushing in an the water flows great,, now my kitchen an laundry room are close together and above the laundry I see a roof vent, idk what steps to...
  11. K

    Air Admittance Valve or Roof vent?

    Doing a split level custom build. The plumber wants to install AAV's on some of the lower level lines, a bathroom and a bar sink. There is a way to vent them normally through the roof, it's just more work for him. Which is better? The floor above hasn't been cast and a vent can come up through...
  12. A

    Switching from Gravity to fully pumped - open vent position?

    Hi, Our gravity HW tank split and without a long delay the only one we could get was a fully pumped tank. Fairly easy replumb to get the tank in, however on all diagrams I've looked at, the fully pumped system has the open vent coming off between the boiler and the pump, whereas in our current...
  13. dave100

    Can I use 90 degree bends in dry soil vent?

    TL/DR: Can I have a bend of 90 degrees in the dry section of a 4-inch soil vent? Hi. I am renovating a small bathroom. There is an awkward part of the wall where the builders boxed off a large section just to conceal the 4-inch soil vent. I realise, of course, that the soil vent is essential to...
  14. T

    sewer smell coming through heat vent

    Everytime my heat comes on I get a sewer smell coming through the air vents.
  15. S

    Open vent Magnacleanse flushing

    Hi all. I have an open vented system with magnaclean filter installed at the return pipe close to boiler. I understand how the magnacleanse cleaning process works for my system but am wondering about flushing it out afterwards. Adey recommend connecting mains pressure with a pressure gauge at...
  16. C

    UFH manifold air vent dribbling

    Having recently replaced one of the flowmeters on our UFH manifold, why would water slowly dribble out of the air vent?
  17. A

    Central heating refill valve and pressure relief vent

    Hi all, hoping you can advise on a couple of problems I need to resolve. Please see photo 1. Not sure why there are two valves (in series) to operate to feed water into the system and raise pressure, but the lower (first) valve leaks water while open. Initially a small dribble, but most...
  18. J

    Feed and vent in an f and e system

    Hi plumbing experts Can anyone tell me why a feed and vent are meant to be no more than 150mm apart as there teeing into system Thanks in advance Still learning the trade
  19. L

    Open vent system.

    Hi, just wondering if anyone could provide me with advice please on an issue I am having with my open vent system. I have recently installed 3 new rads and lost some circulation, when I went to the the loft a noticed that the cold feed was very hot, I have been told previously that header tank...
  20. S

    32mm Vent.

    I have a cloakroom toilet that isn't connected to an outside vent. It's been there 100 years and I don't think it has ever been vented. The floor and wooden paneling were rotten and I ripped them out a long time ago when we bought the house, without ever using that toilet so I don't know if it...

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