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Herman Aav (2 September 1878 Hellamaa, Estonia – 14 January 1961 Kuopio, Finland) was an Estonian Orthodox clergyman who served from 1925 to 1960 as Archbishop of the Finnish Orthodox Church.He was also a composer and author whose works have been published both in Estonia and Finland, some of them under pen name H. Lumilill.

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  1. I

    Is this just a aav?

    Am I right in thinking this is an aav, never seen one looking like this one before but it is on a old megaflo unvented system mk2. The heating already has a standard aav behind but guessing this was added in at a later date. I should of taking a photo of the whole install but I failed to remember.
  2. C

    AAV closed in Vaillant boiler for many weeks - how risky?

    I got my regular annual boiler service for my Vaillant ecoTek 930 about a month ago, and the engineer identified that the AAV was leaking, so he closed it. This is a tenanted property and it's not straightforward to get access to it. How risky is it to / how long can I leave the AAV closed...
  3. J

    Venting & AAV for long runs

    Hi all, Just in process of relocating kitchen & utility to other side of house but have a question re venting requirements. I intend to connect a sink and dishwasher in the kitchen and a sink and washing machine in the utility room to a 50mm waste pipe running within the suspended floor to...
  4. D

    AAV - Bathroom remodel

    Hello. This is my first ever post asking for help. I had a bathroom renovation done early this year which I did myself. I wanted to have a low level shower tray sitting flush to the ground and was not able to get access to the main vented stack as it's boxed in from the inside of the house and...
  5. S

    AAV position on line

    I've installed an AAV on my washing machine drain line, but even with it, it seems to still be gurgling away every time it empties. There is a shower and handbasin further down the line too, whose traps are being drained/glugging also. Diagram below of how I think the waste pipe runs. I'd...
  6. C

    Is this AAV good quality

    Hi Folks, Had an AAV fitted by a plumber recently, as we had to remove a bathroom unit and it was a good opportunity to replace the AAV while we were at it. We used to have a Floplast AAV, but now replaced with one I've never heard of. It has Plumbing & Heating essentials printed in gold on the...
  7. H

    Plumbing & Drains For New Extension - Advice Needed Please

    Hi All, I'm due to start building a new side extension on a 3 bed semi, it's across the driveway up to the boundary. We're adding a downstairs toilet and utility room. The existing soil stack will be retained and boxed in with added rodding eye as it's well positioned for the existing 1st...
  8. C

    Floplast 110 AAV Checking

    Hi guys, I've been experiencing strange smells, in bathroom floor mounted cabinet next to a corner unit where my soil stack is with a Floplast AAV I've now removed the unit next to the soil pipe and now have full access. I notice if I put my fingers into the slotted vents on the AAV that face...
  9. C

    Hard to access soil pipe with AAV

    Hi An idiot Bathroom fitter has cut down a soil pipe and fitted an AAV valve, then placed a built in bathroom cabinet with the soil pipe in the corner unit making the only easy way to access anywhere near the soil pipe by reaching up from where the kicker board goes. You can see from the photo...
  10. C

    AAV Access Problem Built into cupboard

    Hi folks I live in 2 bedroom bungalow and question is about the soil pipe my plumber/bathroom fitter boxed into the corner base unit he fitted. Question is the AAV seems as though its going to be a pig to access if needed I notice that white plastic connector further down the soil pipe, would...
  11. A

    What height should a AAV be under bath?

    I'm installing a new bathroom. I have a combined drain for the bath and shower (2 x 40mm >> 50mm >> stack) and have a McAlpine VP2 AAV to fit under the bath to avoid syphoning of the shower trap. Is this type of AAV correct and how high does it have to be above the bath/shower traps? Thank you.
  12. O

    Slow drain toilet with old & new AAV but fine without

    Hi all, Hope you're well. Anyone any ideas... randomly 2 of our toilets started backing up when flushed (2 on same stack 1st floor and ground, 3rd loo (2nd floor) on its own seperate riser is fine) and takes circa 10s to level out. When flushed you can hear the gurgles and burps from the...
  13. G

    AAV factors affecting operation

    After having a new roof fitted I opted for getting a clean roofline and having an aav fitted to the shortened soil stack in the loft. Since doing so we seem to be getting foul smells around the bathroom and downstairs in the kitchen whereas when the stack vented through roof it was fine. I...
  14. S

    Help with AAV locations and importance in new bathroom fit

    Hoping for some advice on the use of AAVs while plumbing in my new bathroom. There is a sketch of the waste layout in the link below. All of the plumbing is concealed within floorboards or stud walls, so I can't have any AAV's on show. There are 2 voids either side of the bathroom and an AAV at...
    • Stephen44uk
    • Thread
    • aav america bathroom help new new bathroom usa
    • Replies: 0
    • Forum: USA
  15. DrewNYoumake2

    AAV whining sound and sewer smell remaining

    Hi All! Was getting a sewer smell in downstairs bath (2 story house from 1975). Opened the wall to see that the vent was open to the air. Added AAV. 2 issues: 1. Now when toilet flushes, there’s a whining sound but not when sink drains. 2. Still getting a little sewer smell downstream of that...
  16. adamc9876

    AAV directly from flex WC pan pipe

    Not long bought a house with a second story loft conversion to dorma which contains an en-suite. Toilet in en-suite has a flex waste pipe from spigot directly to top of the vertical soil pipe with not much clearance. Soil stack has no ventilation on 2nd floor causing drain smell in the en-suite...
    • adamc9876
    • Thread
    • aav america directly pan pipe smell soil stack toilet usa
    • Replies: 2
    • Forum: USA
  17. A

    Sewer smell with AAV

    Hi all, would appreciate some help here. This is from an old house in the Netherlands. I often, not always, get sewer smells in the shower room upstairs. In the pic, the two pipes on the right are for a sink and a washer. The one in the middle of the pic is for the shower. As you can see, they...
    • aavquestion
    • Thread
    • aav america sewer sewer smell smell usa
    • Replies: 9
    • Forum: USA
  18. D

    New build house smell

    Hi, we just moved to a new build. There is a dreadful 'sewer' smell in the house. No outside soil stack. AAV is sited behind bath panel in family bathroom upstairs. Had this replaced as plumber thought may be faulty, no change in smell. We are one of three houses and there is a joint pump...
    • Dobson
    • Thread
    • aav america build drains house new new build sewer smell usa
    • Replies: 106
    • Forum: USA
  19. R

    AAV near WC pan

    I have discovered that the flexible connector from the WC pan to the soil pipe does not have all the "fins" pushed in and is weeping - that's easy to fix - but I'm wondering if I can address another issue at the same time while I have all the cabinetry off. There does not appear to be any...
  20. M

    Long waste pipe run aav and or antivac trap

    I have a long waste pipe run that is out side of the recommended distance of 4 meters for 50mm pipe. It only has one appliance on it. But because of the length of the run I want to stop self syphonage of the trap. Is there any benefit of fitting a trap with and anti vac adapter or anti vac...
    • Matt0029
    • Thread
    • aav america pipe trap usa waste waste pipe
    • Replies: 8
    • Forum: USA
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