Drain chamber , tops , grills

[Surgery]

got to re drain top of our yard , 225m pipe is here , what have folk put in for chambers etc and prices etc , many thanks

 

[Derky]

Cotterills civils. Talk to Joe say i sent you. You can get plastic chambers all in one then set up metal covers on top with dowels and props then some premix around the chamber. Fill with water first. Text me your address so we get it right on the invoice this time!!!!!!!!!!!

 

[pauld]

Build our own brick chambers, steel angle frame on top and fabricate box section grid for top. Never found an off the shelf solution I would be happy with.

 

[Doing it for the kids]

What's driving over it? If not much sit a length of 300 mm twin wall on a concrete pad 300mm below bottom of inlet to act as a sump then back fill circular hole with concrete and place grill / man hole on top

 

[S J H]

What's driving over it? If not much sit a length of 300 mm twin wall on a concrete pad 300mm below bottom of inlet to act as a sump then back fill circular hole with concrete and place grill / man hole on top

I've been using an offcut of 300mm twinwall stood up, concrete the inside and float, then drill a 110mm hole in the side and put the soil pipe into that nearer the top so it gives a sump, then concrete a cast gulley drain on top,

 

[Doing it for the kids]

Same as what I said then?

 

[S J H]

Same as what I said then?

Yes, sorry I couldn't work it out from your photo

 

[Doing it for the kids]

Took me longer to work out how to download it than my description too!

 

[del_boy]

As said buy some twin wall the right diametre and cut it up to the desired length for chambers, cheapest way of doing it and quick

 

[biggles]

As above but cant stretch to twin wall so use an old plastic 20l oil drum instead

 

[Kevtherev]

Concrete section risers available from most builders merchants are simple and quick and available in various sizes

 

[neilo]

As above but cant stretch to twin wall so use an old plastic 20l oil drum instead

+1 Put some concrete round the outside of the drum, so that it’s just acting as a mould, and holds the weight of the proper grid sitting on the top (I wouldn’t sk8mp on that bit).

 

[Doing it for the kids]

+1 Put some concrete round the outside of the drum, so that it’s just acting as a mould, and holds the weight of the proper grid sitting on the top (I wouldn’t sk8mp on that bit).

Surely depends on the loading abve? A plastic can won't have the support twin wall does unless they stick mesh in the concrete - how far do you go though, same old story

 

[neilo]

Surely depends on the loading abve? A plastic can won't have the support twin wall does unless they stick mesh in the concrete - how far do you go though, same old story

My point was the plastic can only holds the concrete in place while it sets. The additional strength in a length of twin wall is negligible when an artic lorry or a big tractor & trailer rumbles over.

 

[Doing it for the kids]

My point was the plastic can only holds the concrete in place while it sets. The additional strength in a length of twin wall is negligible when an artic lorry or a big tractor & trailer rumbles over.

I disagree, track over it with a digger, it's very strong, doesn't need to be buried deep before an artic can cross without crush.

1m of twin wall is hardy expensive either

 

[neilo]

Fair enough, if your confident of it’s strength. A good job we’re all different or life would be boring.

 

[Lazy Eric]

Just get a pre made plastic yard or road gulley, and pack it round with plenty of concrete, put grid on top, Concrete in, life’s too short