J
jimbo1
Sorry I know this has been covered a lot of time but I can't seem to find an answer to this one.
The new bathroom was installed by a trained plumber and looks great. However there seems to be an issue with very offensive sewer gas smells getting into the bathroom, which is worse when sewer activity is greater (mornings & evenings etc).
We have had our plumber back and he has checked all his pipework to be sound. We have then experienced further issues. No work has taken place on below ground piping whilst installing the bathroom, and we have one soil internal stack which stayed in the same place. We had no issues before the new suite went in. The manhole is not blocked.
I have checked that all water traps in the bath, sink and toilet basin remain at the normal height, and there is no syphoning or bubbling or leaks from any of the pipework. All water flows freely and quickly away on flushing, emptying of sink and bath. Also one does not effect the other if emptied and flushed in combination. We have an outside vent which has been investigated and it is not blocked as I have thrown buckets of water down it and it flows through the manhole. I have also had the local water board out to check and verify no issues with the drains or any know local problems to the sewer system or local housing.
Our plumber has been back since, and re-plumbed the bathroom again!
The smell continues the same, from the toilet. I have never seen a gas bubble pop up from under the U bend, so I can't say sewer gas is making it into the bathroom by +ve pressure / that route.
The smell remains strongest near the water holes and under the rim. The smell can build to a really unpleasant level some days. I now suspect the casting of the toilet to be the issue but there are no leaks. It is a back to wall toilet and does not have a wax seal underneath as it is self contained.
Our outside vent is connected to the lowest channel on the manhole, and ours and the neighbours sewage travels into our manhole via 2 of the upper/higher positioned channels. When I lift the manhole cover I notice waste can be left on the higher capped ledges so the water level is raising enough to cover the lowest channel. I am assuming this means the venting can be blocked off for short periods of time. However when I run everything the water flows through fine. I am wondering if the airtight cover is causing the water to remain high for longer than needed and slowing the flow causing venting problems. I also noticed today that next door don't seem to have an external vent on the side of their house.
I am confused by this smell. Very sorry for the very long post but I feel I have exhausted the investigations and still remain stumped.
Anyone willing to chip in on this ? I would be very grateful.
The new bathroom was installed by a trained plumber and looks great. However there seems to be an issue with very offensive sewer gas smells getting into the bathroom, which is worse when sewer activity is greater (mornings & evenings etc).
We have had our plumber back and he has checked all his pipework to be sound. We have then experienced further issues. No work has taken place on below ground piping whilst installing the bathroom, and we have one soil internal stack which stayed in the same place. We had no issues before the new suite went in. The manhole is not blocked.
I have checked that all water traps in the bath, sink and toilet basin remain at the normal height, and there is no syphoning or bubbling or leaks from any of the pipework. All water flows freely and quickly away on flushing, emptying of sink and bath. Also one does not effect the other if emptied and flushed in combination. We have an outside vent which has been investigated and it is not blocked as I have thrown buckets of water down it and it flows through the manhole. I have also had the local water board out to check and verify no issues with the drains or any know local problems to the sewer system or local housing.
Our plumber has been back since, and re-plumbed the bathroom again!
The smell continues the same, from the toilet. I have never seen a gas bubble pop up from under the U bend, so I can't say sewer gas is making it into the bathroom by +ve pressure / that route.
The smell remains strongest near the water holes and under the rim. The smell can build to a really unpleasant level some days. I now suspect the casting of the toilet to be the issue but there are no leaks. It is a back to wall toilet and does not have a wax seal underneath as it is self contained.
Our outside vent is connected to the lowest channel on the manhole, and ours and the neighbours sewage travels into our manhole via 2 of the upper/higher positioned channels. When I lift the manhole cover I notice waste can be left on the higher capped ledges so the water level is raising enough to cover the lowest channel. I am assuming this means the venting can be blocked off for short periods of time. However when I run everything the water flows through fine. I am wondering if the airtight cover is causing the water to remain high for longer than needed and slowing the flow causing venting problems. I also noticed today that next door don't seem to have an external vent on the side of their house.
I am confused by this smell. Very sorry for the very long post but I feel I have exhausted the investigations and still remain stumped.
Anyone willing to chip in on this ? I would be very grateful.
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