Outdoor drain gulley sunk
Discussion
Any help from any drainage people? My outside drain was blocked and after having cleaned it out to remove the blockage it appears the gulley bend pipe has sunk and is effectively disconnected at the top by 2 or 3 inches. It has a main kitchen sink pipe feeding in and an external pipe poking in from the top for the washing machine machine. As it has sunk the drainage water is dragging in stones from the gap.
Is it possible to line it with something like this
http://www.drainageonline.co.uk/Gullies-%28110mm%2...
Otherwise it means digging up part of a patio
Is it possible to line it with something like this
http://www.drainageonline.co.uk/Gullies-%28110mm%2...
Otherwise it means digging up part of a patio
Basically this has dropped so it's no longer connected at the top
http://www.plasticpipe.uk.com/drain-low-level-p-tr...
The ground around the gully trap is not solid and is stones. In the drain were loads of stones as the water draining in to the gully is dragging the stones in. I'm hoping I can line it rather than have to pay somebody to dig down and reconnect it.
http://www.plasticpipe.uk.com/drain-low-level-p-tr...
The ground around the gully trap is not solid and is stones. In the drain were loads of stones as the water draining in to the gully is dragging the stones in. I'm hoping I can line it rather than have to pay somebody to dig down and reconnect it.
Could you use this and do away with the riser piece, if it's long enough? square hopper You might have to cut it to length.
It's hard to see but the pipe has slipped down and disconnected it seems. You can just about make out a 2 inch gap. Instead of flowing straight down, the waste water exiting the wall part flows back underneath and appears to be washing out the stones from around the pipe. It also means of course some of the waste water isn't draining properly.
Got you now.
Lining it with the bit you linked to would work as long as the diameter will sit within the dropped bit, you'd then have bodge it with mastic at the top. So it would be a bodge.
It wouldn't be hard at all to chip out the haunching mortar holding the gulley in place, remove gully then bring that dropped pipe back where it should be. You should get enough access with the gulley out. Then refit and new mortar to finish.
Lining it with the bit you linked to would work as long as the diameter will sit within the dropped bit, you'd then have bodge it with mastic at the top. So it would be a bodge.
It wouldn't be hard at all to chip out the haunching mortar holding the gulley in place, remove gully then bring that dropped pipe back where it should be. You should get enough access with the gulley out. Then refit and new mortar to finish.
I'd be concerned about why it's fallen in the first place.
It would have been dug out and fitted from the lowest point upwards - so there shouldn't really be anywhere for it to fall.
But obviously there's some now sort of void beneath the pipe for it to fall into.
How did that happen?
Has there been a long-standing leak eroding the surrounding soil?
Has the whole underground pipe dropped or broken somewhere along its length?
If you bodge the connection back together you might be fine or you might just be emptying water into a crack/break further down the drain.
It would have been dug out and fitted from the lowest point upwards - so there shouldn't really be anywhere for it to fall.
But obviously there's some now sort of void beneath the pipe for it to fall into.
How did that happen?
Has there been a long-standing leak eroding the surrounding soil?
Has the whole underground pipe dropped or broken somewhere along its length?
If you bodge the connection back together you might be fine or you might just be emptying water into a crack/break further down the drain.
That's worst case stuff though. If there is no physical signs of any other problems I'd treat this as just an issue with the dropped gully and nothing else.
Saying that, some drainage repair outfits will do you a free camera survey of the drains to check for any cracks and stuff if you are paranoid.
Personally, I'd break out the gully and have a feel around under it and see what that shows you. Then prop it back up with a bit of house brick and push some fresh concrete under and around the fitting as best as you can given the access. Then hope for the best.
Saying that, some drainage repair outfits will do you a free camera survey of the drains to check for any cracks and stuff if you are paranoid.
Personally, I'd break out the gully and have a feel around under it and see what that shows you. Then prop it back up with a bit of house brick and push some fresh concrete under and around the fitting as best as you can given the access. Then hope for the best.
The main cover has been off and after clearing the initial blockage you can see the water flowing through.
Without cutting away the slabs there is no access. If I have to dig up then I will have to get somebody in to do it and might as well happy get it reconnected and any loose ground around it sorted out. But a bodge of sorts with a pipe insert I can manage. Even if it's not 100% successful it will be better than leaving it.
Sounds like a rod down to measure the depth then buy an appropriate length and diameter pipe then trim to suit.
Without cutting away the slabs there is no access. If I have to dig up then I will have to get somebody in to do it and might as well happy get it reconnected and any loose ground around it sorted out. But a bodge of sorts with a pipe insert I can manage. Even if it's not 100% successful it will be better than leaving it.
Sounds like a rod down to measure the depth then buy an appropriate length and diameter pipe then trim to suit.
Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff