Is this how to build a soak away under a concrete slab?

DazlerD

DazlerD

DazlerD

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14 Jan 2025
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6
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England
Hi

As per the picture really...

I'm creating a 4' by 16' concrete slab that I am sloping away from the garage but it's going against the slope of the garden which runs towards the garage. After digging down 5"-6" from my final height (under garage DPC) Im left with an area of stones that is at least a couple of feet deep, and clay. The area doesn't drain when it rains. Does the image show the correct procedure to add a soakaway crate?

Thanks

Nb obv picture not to scale...

54266431628_614b3c6cd8_w.jpg
 
Hi,

Ah right I think i see what you mean. However, on the left is the garage wall with DPC marked. The concrete slab will be 15' long so the acu drain on the right will be over 14' away from the garage. The soakaway will be under this.
 
Not to Scale lol
In my mind in just moving 14' x 4' of rain and putting it back in the ground further away from the garage. Cant see how it can any worse than before !!

54266840120_2cbd9bb007_n.jpg
 
Actually the end blocks are exactly 196 inches away from the garage. which is 16'4".

Anyway, the post was really about the right way to do the soakaway, not where it was or what would happen.

Anybody got any comments on the actual process, thanks.
 
Last edited:
Thanks, there is certainly a lot of info there ! Maybe i need to place the soakaway further up the garden. There is certainly less rocks further up.
 
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