Pocster Posted September 18, 2018 Posted September 18, 2018 Hey all Got a 1st floor flat where suddenly flushing the toilet causes massive gurgles back up the bath . Chucked an entire bucket full of water down toilet - went down pretty quick ( so not blocked ???? ) - bath gurgles like a child being throttled . Blockage or vacuum issue ? cheers
Pocster Posted September 18, 2018 Author Posted September 18, 2018 Just now, pocster said: Hey all Got a 1st floor flat where suddenly flushing the toilet causes massive gurgles back up the bath . Chucked an entire bucket full of water down toilet - went down pretty quick ( so not blocked ???? ) - bath gurgles like a child being throttled . Blockage or vacuum issue ? cheers Ah bum ! sysop please move to correct forum ! Fool me !?
Onoff Posted September 18, 2018 Posted September 18, 2018 Which is why I'll be running a separate 50mm waste with AAV!
ProDave Posted September 18, 2018 Posted September 18, 2018 Gurgles are caused by a blockage of the vent, so the lump of water flowing down the drain creates a vacuum. Normally the vent allows air in, but if the vent is blocked it will suck air in through one of the traps. I assume there is another flat above you? THEY might have a blockage that as well as blocking their flow, has stopped the stack venting? More information if you can please.
Pocster Posted September 18, 2018 Author Posted September 18, 2018 4 minutes ago, ProDave said: Gurgles are caused by a blockage of the vent, so the lump of water flowing down the drain creates a vacuum. Normally the vent allows air in, but if the vent is blocked it will suck air in through one of the traps. I assume there is another flat above you? THEY might have a blockage that as well as blocking their flow, has stopped the stack venting? More information if you can please. Hey No just 2 flats. So the vertical soil stack goes up into the 1st floor flat then into the loft space (no idea what's ontop of it) - the hatch is tiny; I can't fit in it! I've googled an "anti vac trap" on the basin might work..... Ground floor flat (which I don't own) appears to have no issues so I've been *told* (not witnessed)
Nickfromwales Posted September 18, 2018 Posted September 18, 2018 50 minutes ago, Onoff said: Which is why I'll be running a separate 50mm waste with AAV! ?
Nickfromwales Posted September 18, 2018 Posted September 18, 2018 3 minutes ago, pocster said: Hey No just 2 flats. So the vertical soil stack goes up into the 1st floor flat then into the loft space (no idea what's ontop of it) - the hatch is tiny; I can't fit in it! I've googled an "anti vac trap" on the basin might work..... Ground floor flat (which I don't own) appears to have no issues so I've been *told* (not witnessed) If the fault had just started occurring then you have an issue to deal with. Find what’s caused the problem or wait for it to get much worse.
ToughButterCup Posted September 18, 2018 Posted September 18, 2018 55 minutes ago, pocster said: [...] bath gurgles like a child being throttled . [...] How would a very nice boy like you know? 1
Pocster Posted September 18, 2018 Author Posted September 18, 2018 Just now, Nickfromwales said: If the fault had just started occurring then you have an issue to deal with. Find what’s caused the problem or wait for it to get much worse. It's tricky. As I have no access to any drains; all in ground floor flat. Those tenants aren't particularly co-operative. I could fit an anti vac anyway?????
Pocster Posted September 18, 2018 Author Posted September 18, 2018 1 minute ago, recoveringacademic said: How would a very nice boy like you know? Oh just guessing.... ?
Pocster Posted September 18, 2018 Author Posted September 18, 2018 3 minutes ago, Nickfromwales said: ? Why's this bad @Nickfromwales ?
Nickfromwales Posted September 18, 2018 Posted September 18, 2018 Dropping an entire floor in small bore waste pipe is a no-no afaic. Major issues with siphon effect so I avoid at all costs. Norm would be to run horizontally to a snow box and use that as an air break. Not possible if you have to get grey water to the FW network but fine for combined sewers. Strap on or boss socket into the 110mm every day of the week for me and I’ve been doing this for nearly two and a half decades.
Nickfromwales Posted September 18, 2018 Posted September 18, 2018 22 minutes ago, pocster said: It's tricky. As I have no access to any drains; all in ground floor flat. Those tenants aren't particularly co-operative. I could fit an anti vac anyway????? Can you get a drainage company out on the insurance. ?
Pocster Posted September 18, 2018 Author Posted September 18, 2018 (edited) 6 minutes ago, Nickfromwales said: Can you get a drainage company out on the insurance. ? Not on insurance. Assuming ground floor permits me access I could just get it jetted anyway ? But as I don't know if there is a blockage more tempted to fit the anti vac first. I'm not too worried if it is blocked/blocking as ground floor will experience any ?first! Edited September 18, 2018 by pocster
Pocster Posted September 18, 2018 Author Posted September 18, 2018 (edited) So anti vac trap first and see what happens?? Edited September 18, 2018 by pocster
Pocster Posted September 18, 2018 Author Posted September 18, 2018 7 minutes ago, Nickfromwales said: Who pays for the flood damage ? ????? buildings insurance
Ed Davies Posted September 18, 2018 Posted September 18, 2018 39 minutes ago, pocster said: It's tricky. As I have no access to any drains; all in ground floor flat. But, as ProDave says above, the blockage is likely above your toilet. Can you see the top of the soil pipe outside the building (on the roof)?
Pocster Posted September 18, 2018 Author Posted September 18, 2018 Just now, Ed Davies said: But, as ProDave says above, the blockage is likely above your toilet. Can you see the top of the soil pipe outside the building (on the roof)? Oh I see ! not sure how it got blocked then ! No nothing coming out the roof - so no idea where it runs .
MikeSharp01 Posted September 18, 2018 Posted September 18, 2018 Nick - trying to work out how the problem might be below POCSTER but drew a blank is there a root to this?
Pocster Posted September 18, 2018 Author Posted September 18, 2018 Would the anti vac on the basin solve the issue though even if the vent pipe is blocked further up ?
MikeSharp01 Posted September 18, 2018 Posted September 18, 2018 Hang on, I can see how this might happen, suppose the blockage above you has always been there but not apparent - always somewhat restricted. Now however there is a blockage below you that used to be open to the atmosphere so flow, once past this new failure point, sucks the traps above it. IS there a delay before the gurgling starts.
Pocster Posted September 18, 2018 Author Posted September 18, 2018 Just now, MikeSharp01 said: Hang on, I can see how this might happen, suppose the blockage above you has always been there but not apparent - always somewhat restricted. Now however there is a blockage below you that used to be open to the atmosphere so flow, once past this new failure point, sucks the traps above it. IS there a delay before the gurgling starts. Yes a bit of a delay . Pour bucket down toilet ; 2 seconds later gurgle
Onoff Posted September 18, 2018 Posted September 18, 2018 2 minutes ago, pocster said: Would the anti vac on the basin solve the issue though even if the vent pipe is blocked further up ? The "getting much worse" is I assume the brown stuff coming back up the sink?
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