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Flooding and Sewage
- Jo (6th Sep 2022 06:52:19)
Is anyone else experiencing significant flooding in these heavy rains? Our manhole in our back patio is continually flooding with the back up of sewage, drain water and last night leaves and surface water appeared.
We had issues back in 2015 when Thames Water fitted us a non return valve and cleaned the pipes from us at Griggs Green over to the Shell Garage. The non return valve has failed finally.
This time we don't have raw sewage coming up into our house, which we did in 2015 until I invovled Mr Hinds but we are dealing with this everytime it rains hard.
Thames water have been out, three times now and a network planner has instructed a new non return vavle. Great for us when it eventually gets fixed as it could be several weeks.
However, this is not a long term solution. The large amounts of water on the road before the Deers Hut at the bottom of the dip are coming from the Sewage drain which we watch overflowing each time it rains. In fact the pressure in the system has blown the manhole before. The Environment Agency are aware. The system backs up, Griggs Green pumping station seems to release the held waste/water as it is a pressured system and the whole pipe system backs up.
Combine this with the additional sewage and run off (which I have been told goes into the sewage system) from the new housing estate at Oak Park and it results in a system not fit for purpose anymore. But what can be done about it?
Thames Water have said we can use our submersible pump to stop it reaching our thresholds, one can do this to protect their house according to the Environment Agency ( unfortunately, they don't give advice on protecting ones sanity!).
I would appreciate hearing about any issues others may be experiencing as I would like to start building up a bigger picture of the problem before tackling the powers that be.
I am a little tired of being unable to leave my property each time it rains for fear of flooding and getting the pump going in the early hours!
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Re: Flooding and Sewage
- er (6th Sep 2022 11:11:55)
Good luck with this, it sounds like maybe a classic case of ever more Liphook development with little or no extra infrastructure to cope. I'm sure it's complicated but I always thought (or maybe hoped) that rainwater drains were seperate from sewage drains, is that not the case here or has it backed up from the treatment works where they mix?
Maybe when we get our latest 600 new house development we'll get a bigger sewage treament works (not holding my breath though, no pun intended!)
I realise the environmentalists and other groups go mad if the utility companies overflow surface into rivers during periods of heavy rain to avoid this type of scenario, but perhaps they don't think about the alternative consequences for people living in low lying areas outside of growing towns or near sewage works, I wonder if the same people are demanding we stop expanding our towns till their Magic Money Tree builds us hundreds of billions of pounds worth of new sewers and treatment facilities amongst other things!
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