Advice needed on where to lay ag pipe?

[sammysausage]

Hi All,

This is my first time posting so I hope I've put it in the right place.

Basically I'm putting in new drainage to deal with the amount of water that ends up in our property (from the three properties that border us higher up on the hill) whenever there's a heavy downpour (which has been quite a bit over the past year here in QLD!).

I'm confident enough in how to install (i.e. trench depths, etc), however, I can't seem to find any information on how far from a retaining wall and/or slab I should dig the trench(s). I've had one suggestion of .5m but the source isn't 100% reliable.

Also, I'm planning to lay ag pipe down either side of the yard to a pit then into the storm water pipe, however, would a single pipe down the centre of the yard basically do the same job?

Any advice would be very gratefully appreciated.

Cheers,

Sam

[Oldsaltoz]

Hi All,

This is my first time posting so I hope I've put it in the right place.

Basically I'm putting in new drainage to deal with the amount of water that ends up in our property (from the three properties that border us higher up on the hill) whenever there's a heavy downpour (which has been quite a bit over the past year here in QLD!).

I'm confident enough in how to install (i.e. trench depths, etc), however, I can't seem to find any information on how far from a retaining wall and/or slab I should dig the trench(s). I've had one suggestion of .5m but the source isn't 100% reliable.

Two things come to mind, maximum fall for maximum flow and Fall between wall tht you want to keep dry and drain.

Also, I'm planning to lay ag pipe down either side of the yard to a pit then into the storm water pipe, however, would a single pipe down the centre of the yard basically do the same job?

Any advice would be very gratefully appreciated.

Cheers,

Sam

First look at the direction the water takes to get into your yard, then plan a suitable agg drainage system, this can be a 'Y' drain or piped placed at and angle on the slope to maimise catment and flow.

Good luck. ")

[Steffen595]

Hi All,
Also, I'm planning to lay ag pipe down either side of the yard to a pit then into the storm water pipe, however, would a single pipe down the centre of the yard basically do the same job?
Sam

which part do you want to drain?
For walls: better next to the walls, then you can also waterproof you walls? Plus thats where the water is pushed against, so just remove it from there. Plus you get the rain water as well.

[Oldsaltoz]

which part do you want to drain?
For walls: better next to the walls, then you can also waterproof you walls? Plus thats where the water is pushed against, so just remove it from there. Plus you get the rain water as well.

Drainage next to walls should have the top of the agg pipe just below the bottom of the wall, alongside the footing, not on top of it.

Good luck. :)