Garden drainage help

Question

We've got puddles forming on clay soil or garden in our new. What's an appropriate drainage solution? 

As the external floor was very high and leading to bridging or damp course we've removed it and dug down around 8-10 inches in that area. We've got through some concrete and type one and now found clay which the water sits on. 

Should I dig further into the clay or just lay something drainable on top?

We've removed the concrete along the rest of the side return but not yet dug the type one away there. We have a manhole at the back of our garden which we could potentially channel water towards. 

Should we remove dig the whole of the side return to the same level? 

Currently, at least there is plenty of depth below the rear wall meaning it won't bridge the damp course but as it's now the lowest point in the garden I'm concerned that water in the rest of the garden may drain towards that area and cause problems.

Darren · Accepted Answer

Hi there, I'd suggest putting in a land drain and run it to the manhole, this would allow water to run away and should prevent puddling. Hope this helps. Swift groundworks.

Jason · Answer

It's a pointless exercise trying to put soakaway on clay it won't go anywhere what you need to do is put Acco drains or French drains as some call them. Run your pipework into the manhole or connect them into drains if they are any closer than the manhole. Thanks. Jason, jandjdrains.

Lak · Answer

Hi, lay some drains on top that should solve it, that should work.

Nicholas · Answer

Morning Sam, think you may require a French Drain, you can dig a channel to get the water running away. Just manage the water, if levels continue to rise you could have a leak of some sorts.

Paul · Answer

Hiya, I would personally, I would dig a trench down to the clay away from the property, partly fill with pea gravel and dig a deeper hole at the lowest point and backfill.

Michael · Answer

Sounds like a soakaway needs installing at the lowest point of the area.

Garden drainage help

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