, dig a sump at lowest point, float switch and pump inside, metal grill over the top - job done.
Fine, so long as the flood doesn't cut your electricity supply.
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, dig a sump at lowest point, float switch and pump inside, metal grill over the top - job done.
Fine, so long as the flood doesn't cut your electricity supply.
I don't see any other option? - he's already said he's at a low point, and if he wasn't he wouldn't be likely to have a problem.
I'm back to wondering where he would pump the water to.
just to somewhere where it drains away from your property.
The point where it drains away from your property is not necessarily lower than the sump. It could just be over a small mound for example.And we come full circle (again) to the possibility of connecting the sump directly to that lower point where it drains away. Ie. Install a drain.
Good pointThe point where it drains away from your property is not necessarily lower than the sump. It could just be over a small mound for example.
Mike.
And we come full circle (again) to the possibility of connecting the sump directly to that lower point where it drains away. Ie. Install a drain.
hire a digger and dig a huge deep trench across your property, probably across a neighbours as well, and demolish parts of your house to make it run from within the basement/cellar. As it's got to run downhill all the way it could VERY easily be a considerable depth - these are called soughs - and often cost millions at today's prices,
It does of course need the outlet to be as low as the inlet,
Yup, you got it.Yep. But the pipe can go uphill in between, so longnas the down hill bit is longer than the uphill bit.
And when a burst main started flooding the shared basements of a block of flats, it took the local council (DenHaag) less than 4 hours to run a 100mm pipe 380m from a nearby canal, under and adjacent block of flats and into a 1m x 1m x 1m sump dug into the basement floor by 2 men with kangos and spades.
A hose pipe, a couple of non-return valves and what looked like an upturned washing up bowl on stilts and a no power required, permanent auto-siphoning drain was installed. Amost entirely maintenance free, although it did have what looked something like an industrial sized lift flush handle to re-prime it if the valves leaked.
The Dutch like low-tech, green solutions.
Yep. But the pipe can go uphill in between, so longnas the down hill bit is longer than the uphill bit.
And when a burst main started flooding the shared basements of a block of flats, it took the local council (DenHaag) less than 4 hours to run a 100mm pipe 380m from a nearby canal, under and adjacent block of flats and into a 1m x 1m x 1m sump dug into the basement floor by 2 men with kangos and spades.
A hose pipe, a couple of non-return valves and what looked like an upturned washing up bowl on stilts and a no power required, permanent auto-siphoning drain was installed. Amost entirely maintenance free, although it did have what looked something like an industrial sized lift flush handle to re-prime it if the valves leaked.
The Dutch like low-tech, green solutions.
Wow, all this discussion was started by a guy who wanted to know how to wire up a float switch to drain his back garden.
Amazing.
JimB
Did I miss the post where the OP identified his local geology?Bit different to digging a trench through granite, limestone or sandstone.