Too much water for 4 houses

[JT101]

A customer has this one downpipe at the front of their property which serves theirs, and three other properties. For some reason having problems attaching an image, but basically the other three roofs have one long piece of gutter that stops at the edge of the customers property, has a very short piece of downpipe into another piece of 2ft guttering. From here it goes down to a drain. There are no other drains on any of the properties out front. Without a photo it's hard to explain, but there is no other place to the put the guttering. It has to be that short piece of 2ft gutter. But what I can do is route the long guttering around that 2ft piece and into the downpipe further down.

I hope this will solve the problem. The water has been spilling out that 2ft piece of guttering, likely for the lifetime of the property. If it doesn't, could I use a piece of black SVP to increase the flow rate? This won't be connected to any of the black or grey water systems i.e. sink, toilet etc. That's all out the back. Will look a bit odd, and I've never seen it done before, but then again I've never seen 4 houses connected to one downpipe.

Just wanted some opinions

Cheers

 

[securespark]

SVP - soil pipe?

That was my immediate thought but without a piccy I too am having trouble visualising the scenario.

 

[Nige F]

The 2 foot gutter - can you change it for deepflow/square? i.e more volume in the gutter

 

[John D v2.0]

Yes we have a down pipe at the back of our place where the main roof gutter plus the flat roof gutter both go into a hopper. The down pipe is 110mm and looks OK.

 

[JT101]

Thanks for the replies. Problem is the SVP (yes, I meant soil vent pipe), would be visible at the front of the house. I can't see any practical problem with it, but not sure if it contravenes any regulations.

 

[Ian H]

Could you run an outlet off the long piece of gutter and join it on a Y below the 2ft piece of gutter? Then just cap the end of the long gutter.

 

[datarebal]

a Long Hopper?

 

[John D v2.0]

Agreed on the hopper, you can get a better flow rate down a given pipe from a hopper rather than a normal drop from a gutter as the water isn't flowing across the opening, it's falling down there.