Toilet 'Syphoning' After Flush.
Discussion
Nothing to do with the cistern but the level of the water in the bowl is settling too low, almost below the bend.
Occasionally, when the toilet is flushed, rather than swirling and running away the bowl fills with water then drains slowly continuing to run out to the point of 'burping'. It doesn't happen every time, I used to attribute it to a partly blocked drain which jetting and rodding often cleared. Main suspects were tree roots but I took the tree out about two years ago so would hope any roots might have rotted away by now.
I think I'll have to get someone round with a camera and have a proper look but am I right in thinking that a blockage or collapse might be the cause?
Occasionally, when the toilet is flushed, rather than swirling and running away the bowl fills with water then drains slowly continuing to run out to the point of 'burping'. It doesn't happen every time, I used to attribute it to a partly blocked drain which jetting and rodding often cleared. Main suspects were tree roots but I took the tree out about two years ago so would hope any roots might have rotted away by now.
I think I'll have to get someone round with a camera and have a proper look but am I right in thinking that a blockage or collapse might be the cause?
Do you have a vent stack on your soil pipe?
Have been looking into toilets recently (pun intended) and it would seem a good airflow is important to prevent a vapour lock, alternatively you might have to fit an avv http://www.toolbase.org/Technology-Inventory/Plumb...
alternatively try eating more fibre!
Have been looking into toilets recently (pun intended) and it would seem a good airflow is important to prevent a vapour lock, alternatively you might have to fit an avv http://www.toolbase.org/Technology-Inventory/Plumb...
alternatively try eating more fibre!
Flintstone said:
There's one at the back of the house serving the bathroom (upstairs). The problem affects the downstairs toilet which is at the front of the house, as far from the bathroom as it's possible to get.
Wouldn't be surprised if the two soil pipes meet somewhere under the house and one pipe vents the system. There's no AAV in the vanity unit. I know because I installed it last year and no, the old one didn't have one either.
RichB. I'm surrounded by bloody manholes to be honest. Two on the drive, one elsewhere in the front garden and two huge concrete covers in the back garden. To be honest I've only ever had trouble with the downstairs toilet so I know where that flushes. Never had cause to lift any other covers and work out what flows where. Until now of course.
RichB. I'm surrounded by bloody manholes to be honest. Two on the drive, one elsewhere in the front garden and two huge concrete covers in the back garden. To be honest I've only ever had trouble with the downstairs toilet so I know where that flushes. Never had cause to lift any other covers and work out what flows where. Until now of course.
Flintstone said:
There's no AAV in the vanity unit. I know because I installed it last year and no, the old one didn't have one either.
RichB. I'm surrounded by bloody manholes to be honest. Two on the drive, one elsewhere in the front garden and two huge concrete covers in the back garden. To be honest I've only ever had trouble with the downstairs toilet so I know where that flushes. Never had cause to lift any other covers and work out what flows where. Until now of course.
Did the vanity basin have an anti-syphon trap on it?RichB. I'm surrounded by bloody manholes to be honest. Two on the drive, one elsewhere in the front garden and two huge concrete covers in the back garden. To be honest I've only ever had trouble with the downstairs toilet so I know where that flushes. Never had cause to lift any other covers and work out what flows where. Until now of course.
Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff