The rainwater from my patio roof runs out via a downspout onto the lawn. A few meters from that outlet, I have a downspout that goes directly to the sewage system. I would like to run a pipe from the patio's downspout to the "real" drainage system.

I would be incredibly grateful if someone could give me tips on what I would need to carry out the installation :) What do I need to buy?

There will be some digging involved, but I think the slope doesn't need to be extreme, as the distance isn't that far.

In the picture, you can see the patio roof's outlet on the left and the "real" solution on the right.
 
  • Downspout on the left side of a white building and a coiled garden hose on the right, with a green lawn in the foreground.
What is the proper drainage, stormwater or wastewater?
You must not connect downspouts to the wastewater pipe.
You should preferably use common plastic underground drainage pipes.
 
J Jochi said:
What is the correct drainage, stormwater or wastewater?
You are not allowed to connect downpipes to the wastewater pipe.
You should use regular plastic underground drainage pipes.
Yes, I assume it's stormwater to the right, all the rain from the house ends up there, and I want to direct the patio roof's water there as well.
 
Claes Sörmland
If there is a stormwater system there, just dig up the ground pipes and see what's there. There should be standard orange underground sewage pipes in PVC or PP.

In that case, you continue building with a T-pipe and extend the line further. Then a bend up at the downpipe that should be connected.
 
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m@nge
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Claes Sörmland Claes Sörmland said:
If there is a stormwater system there, just dig up the ground pipes and see what is there. There should be regular orange ground sewage pipes in PVC or PP.

In that case, you continue with a T-pipe and extend the line further. Then, a bend up at the downpipe that needs to connect.
Do you possibly feel like linking the products I might need? I guess it's standard sizes for that?
 
M m@nge said:
Do you possibly have the inclination to link the products I might need? I'm guessing it's standard dimensions?
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https://www.jula.se/search/?query=markavloppsrör

You need a branch pipe for connection to the existing pipe and some bends (also known as leaps).
You have to dig a trench for the sloped pipe. Start digging at the end by the existing pipe. It's good if the pipe starts with a vertical section so water drains away without overflowing, then the slope can be about 1 cm per meter 1%.
I suggest you hire a pipe guy to fix the pipes once you have the pipe trench ready.
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Is this a job for a plumber or someone who works with ground/construction actually? Should be the latter, and maybe I should outsource the project, not big but still :)
 
M m@nge said:
Is this a job for a plumber or someone who works with ground/construction essentially? It should be the latter, and maybe I should outsource the project, nothing big but still :)
It's a typical job for a classic jordapa.
 
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