Back yard getting flooded by rain water

in south australia, my house is on a hill and the stormwater from the roof runs onto the front lawn and the back lawn, has done for ages through the 2 downpipes. we have a 5000L tank that connects the rear of house but not front due to the slope but when it gets full which it does quickly with 200 square metre roof space is when it vents onto the back yard lawn. when it rains the front yard gets flooded and also does the back yard and all the water runs off down the hill into the rear neighbours yard.
I cant run the pipes onto the street as the outlets are about 1 metre below street level and we have a 30metre frontage.
i have a driveway grate drain which diverts water running down the drive way into the back yard so it doesnt go through the shed flooding it like it used to.
now this flooding really pisses me off. The only option i can think of is run the front pipe into the start of my drain grate for my driveway which diverts it into my back yard at the moment and install a rain water sump at the end of the pipe that comes from the drainway grate with my front pipe connected to it so all the water that goes to flooding my front yard is then diverted into the sump. when the sump gets full an electric pump starts pumping it into the sewage system.
The rear down pipe could also be diverted into the sewage drain where the dunnie and sinks goto. is this legal?
anyone got any other ideas when your street is higher than the house rain water outlets?

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Originally Posted by wozzzzza

.... is this legal?...

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Is anyone going to find out?
Sumps and sump pumps are a pain in the backside - if there was a viable alternative I'd be exploring it

it is illegal to run stormwater to sewer, authorities smoke test the sewer occasionally, and when they see smoke coming out of your gutter...well...you can imagine.

Pump it into the street gutter.

Why does it you off? Do you want to use your lawn when its raining?

Sustainable gardeners now design lawns to keep rainfall in until its soaked in.

What about putting in a rain garden? The idea is that you direct excess stormwater into an area of the garden which can store it temporarily until it soaks in.

I'm a firm believer in not passing my problems onto someone else.

Quote:

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Originally Posted by rhancock

Why does it you off? Do you want to use your lawn when its raining?

Sustainable gardeners now design lawns to keep rainfall in until its soaked in.

What about putting in a rain garden? The idea is that you direct excess stormwater into an area of the garden which can store it temporarily until it soaks in.

I'm a firm believer in not passing my problems onto someone else.

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cause the yard on a slope, the running water just picks up any dirt or what ever it can find and rinses it down the the back neighbours. makes mud patches out of the lawn, floods everything else in sight. most of this water is coming from the roof and what i can divert out somewhere into storm water is better there than flooding my yard so i dont need boots to walk through it. plus the fact council wants my rainwater diverted elsewhere than the ground.

Run it into a pit in the backyard and then pump it out to the strret.
DONT stick it down the sewer, you will be crucified!

This looks like a job for a rubble drain, if you are fit enough dig it or if you are like me get in a bob cat with a digger. I had the same problem and the drain fixed it.
les

Quote:

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Originally Posted by wozzzzza

I cant run the pipes onto the street as the outlets are about 1 metre below street level and we have a 30metre frontage.

now this flooding really pisses me off.

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Why not????
You'd just have a Metre of Water sitting in the Stormwater Pipework once it had finished emptying onto the Street gutter.

I have similar,
but not a metre.


Don't you mean it PEEVES you:?:?

Are the gutters above the street level?

If they are then you could run a wet systen out to street.