Installing a drain and connecting to drain pipe

[SammyD]

 

We have had excess run off from our neighbours property(higher level) and they have had the same excess from their neighbours (higher level).

To resolve this, we have decided to do it ourselves and take care of the excess water. In order to do so, I am thinking to install french drain as highlighted in red and connect it to storm drain.

my question is , is that the accurate approach to tackle this and what all pipes, junctions etc will I be needing to be able to do this?

 

  

[JacobZ]

Hi @SammyD,

It looks like you are dealing with surface water more than subsurface water. A French drain is better suited to subsurface water, whereas surface water is easier to manage with drainage channels and pits such as this Everhard EasyDRAIN Polymer Grate And Slim Pit.

You've indicated where the water flows to in your photos, but are you aware of where it flows from? Knowing it's origin will help us capture as much of it as possible.

There's no perfect solution, but I suspect the easiest way to manage this problem would be to install Everhard EasyDRAIN Polymer Grate And Channel along the orange line in the below photo.

If you have the drain fall slightly towards the retaining wall at the top of the photo, you can install an Everhard EasyDRAIN Polymer Grate And Slim Pit where I have circled below.

From this drainage pit, you can run agi pipe to the stormwater drain along this dotted line and have a plumber connect it to the stormwater pipe for you.

Running agi pipe along this last stretch will carry the water collected from the drainage channel, as well as help to collect any groundwater in the area with the stones.

Unfortunately, the connection to the stormwater drain will need to be done by a licenced plumber, however you can do the rest of the work.

Allow me to tag @Dave-1, @Noyade and @Nailbag for their thoughts.

Let me know what you think.

Jacob

[Jewelleryrescue]

Hi @SammyD 

@JacobZ  has  a bunch of good options any of which will work a  treat.  I have the identical rocks and water issue.

I solved mine  with a  65mm socked Ag line in sloped shallow open  trench just  enough to collect the  source of the water mostly and any water all along under the path length angled down 1:10 angle to my houses  storm water down  pipe.

Under the Ag pipe was black plastic sheet across the path way pushed into the Ag trench groove which also  collected loose water back filled  with your paths stones and topped with stepping stones sitting on cement poured  pads.  No amount of rain has flooded that area yet.

Basically as  long as your  ground is  sloping  from your water ingress point to your exit  point Your  stones are  all you need as they will self  drain in a minite or two after a down pour. So shape your ground dig ground  from your  planned exit point and make the entry point higher with the same dirt create a even gradient add you Black  plastic and stones down wards towards the storm water pipe. 

Plumbing might be as simple as  lowering the storm water point and capping  it with a  Round finishing  collar and  grate, with out having to tap into any pipe work. This will save you and your plumber  work and $ 

https://www.bunnings.com.au/holman-100-x-90mm-storm-abs-finishing-collar-with-grate_p4770443

[Dave-1]

Good Afternoon @SammyD 

Id like to say hwody and a warm welcome to the community Playing around with stormwater can be fun especially when its been solved and this is a great place to start.

To throw a third option into the mix. I like the idea of dish drains, a shallow surface drain that catches and channels storm instances of water runoff. As @JacobZ has said french drains are more subsurface drains as well as ag-pipe style that @Jewelleryrescue mentions. Tho @Jewelleryrescue 's suggestion is closer to what I wa sthinking. The water has to soak through the pebbles, sock and corrorgated pipe to get to the drain. 

A dish drain can be as simple as three pavers side by side with the middle paver lower then the two outside ones. The outside ones are at an angle with the furtherest point away from the middle being level with the ground and the other end of the brick/paver being level with the middle paver. 

You have the drain slowly slope towards the drain pit in the middle of your path. 

This will carry storm instances of water away fast so it dosnt pool. You could also back fill that type of drain with those large pebbles so the path is level but you know that when it rains theer is a channel for it to flow through. It wont carry the water away as fast with the stones in the channel but will be easier to walk on.

Dave