building pipe to connect guttering downpipe to soakaway

[garyo]

I need to connect the bottom of a drain pipe to a soakaway. There's around 5 metres of low quality patchy tarmac/concrete between the pipe and the soakaway location. This is used to park cars on, so the pipe needs to be sturdy.

Does this class as normal sewerage, and I need to encase pipes in concrete deep underground? What I'd like to do is fit a nice looking grid/grate at the bottom of the drain pipe, then fit a cast iron pipe 20 cm under the ground, capped off with replacement tarmac / concrete. My reason for doing this is to keep the pipe as high as possible so that the soakaway doesn't need to be 2M under the ground.

Do I also need to fit rodding eyes, or will a removable grate at the start suffice (even though it'd be near a wall, and a pain to rod?)

Thanks

Gary

 

[Static]

Encase it in concrete if its less than 1m below ground and in a area with vehicles.

 

[big-all]

i take it its only rain water connected to the down pipe!!
what was the soakaway origionaly desighned for!!

 

[garyo]

Yes, rain water from a 2m x 4m roof. The soakaway doesn't exist yet, and will be a 1.2 metre cubed in size.

I'd like to use something like this, but with out the grates on the top:

If I encase a plastic pipe in concrete, using a 75mm plastic pipe, as per below, then can that encasement be 5cm below ground level:

Untitled

• garyo
• 19 Mar 2010
• 1

Thanks

Gary

 

[freddiemercurystwin]

I'd like to use something like this, but without the grates on the top:

Thats just what I was thinking when I read your first post to save digging a huge trench but did'nt reply as I'm unaware of where you'd get a blanking cover off the shelf to suit!

 

[garyo]

Thats just what I was thinking when I read your first post to save digging a huge trench but did'nt reply as I'm unaware of where you'd get a blanking cover off the shelf to suit!

The problem with it is that the tarmac drive was laid over a number of years, in sections that vary slightly in height (+/- 1cm kind of stuff), so I could never really achieve a neat/flush finish, and therefore I'd still like to bury them slightly below the surface.

Gary