We had a problem outside the back of our house with one of those
"super-weeds" that lifted the concrete on the public footpath/car park. As a
result, rainwater etc doesn't flow towards the drain, it just pools outside
ours and our neighbours back gate which is our access to our cars. The water
has a depth of around 2-3 inches (and covers around 5m squared), is there
anything that will pump this away completely? I want to crack on using the
jet washer on the garden furniture/patio but this just causes a pool. I've
seen pumps that work down to 5mm, but I was wondering if there was anything
that would clear dirty water right down to (almost) ground level. The actual
main drain is around 5 metres away, and the pump only needs to pump the
water to a height of about 1 inch above the top of the "pool" to reach this.
Anyone have a good solution?
I would be inclined to find the lowest point and bash a small hole in it. You
can then put the suction hose in the hole.
This is not a perfect solution, but the perfect solution would be to redo the
job with a fall running to the drain.
My usual solution when the cellar floods is to remove all I can with a
standard submersible pump, then remove the rest with the wet and dry
vacuum. That will take all the remaining surface water off.
You can get different models of submersible pump - some of which can
remove more than the others, but be very careful not to wreck the seals
by running it dry other than very briefly.
A sump to put the pump in is the standard solution. Doesn't need to be
very deep. However if there is a spot with a natural barrier at the
back, put the pump there and use a broom to push the water towards it.
With a bit of practice the water around the pump can be kept in place by
timing the brush movements.
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