Some advice requried about downpipe and drainage.

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Bananabob

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#310530 28-Oct-2023 19:19

I have a downpipe that is 12cm in circumference. I want to attach some sort of flexible hose/pipe to it to take the water to the nearest storm water catchment on my property. Is there someone who can suggest what I should be looking for in the hardware store? Thanks!

mentalinc

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#3153179 28-Oct-2023 19:41

A 12cm circumference is a diameter of like 3.82cm.. Are you sure its not a 120mm diameter down pipe?

Ideally you'd be running pvc the whole way to the stormwater drain.

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larknz

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#3153188 28-Oct-2023 21:16

PVC pipe dimensions are normally given as the diameter of the pipe.

Bananabob

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#3153238 29-Oct-2023 10:02

mentalinc:

A 12cm circumference is a diameter of like 3.82cm.. Are you should its not a 120mm diameter down pipe?

Ideally you'd be running pvc the whole way to the stormwater drain.

Yes I am sure. It is only a small downpipe running off a conservatory roof. I am looking to attach a flexible hose or pipe to the bottom of it so I can run the nearly 7 metres to the drain. It has to be flexible so it can go round a corner. I guess if I could get a hose about 4cm diameter and secure it with a hose clip that would work.

mdooher

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#3153242 29-Oct-2023 10:12

You could probably bodge up a neat connection with some 40mm flexible conduit and and a 40mm coupler.. just use that white spouting PVC glue to join and take up any slop

edit: this pipe is ridged inside so it would need flushing every year or so.. the stuff that is smooth inside is usually more expensive

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#3153243 29-Oct-2023 10:17

Bananabob:

Yes I am sure. It is only a small downpipe running off a conservatory roof. I am looking to attach a flexible hose or pipe to the bottom of it so I can run the nearly 7 metres to the drain. It has to be flexible so it can go round a corner. I guess if I could get a hose about 4cm diameter and secure it with a hose clip that would work.

pics might help.

its most likely not a standard downpipe size. you will need to take inside and outside measurements because it depends on if they used pipe or tube.

however do you need to run that to a drain? its a tiny pipe no doubt off a tiny roof area (pics would help) so the amount of water will be stuff all. old school would be to put a stone bed at the pipe exit and give it some soakage room.

Bananabob

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#3153244 29-Oct-2023 10:23

tweake:

Bananabob:

Yes I am sure. It is only a small downpipe running off a conservatory roof. I am looking to attach a flexible hose or pipe to the bottom of it so I can run the nearly 7 metres to the drain. It has to be flexible so it can go round a corner. I guess if I could get a hose about 4cm diameter and secure it with a hose clip that would work.

pics might help.

its most likely not a standard downpipe size. you will need to take inside and outside measurements because it depends on if they used pipe or tube.

however do you need to run that to a drain? its a tiny pipe no doubt off a tiny roof area (pics would help) so the amount of water will be stuff all. old school would be to put a stone bed at the pipe exit and give it some soakage room.

Certainly does need to run to a drain. There is surface water over the garden everytime it rains. The drain is actually a soakpit for the house rainwater

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tweake

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#3153246 29-Oct-2023 10:27

best bet might be 65mm corrugated drainage pipe (unpunched) which you can get in short lengths at bunnings etc. big enough that down pipe will go inside and flexi enough for turns etc. just need to dig trench with the right slope.

Bananabob

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#3153381 29-Oct-2023 13:30

tweake:

best bet might be 65mm corrugated drainage pipe (unpunched) which you can get in short lengths at bunnings etc. big enough that down pipe will go inside and flexi enough for turns etc. just need to dig trench with the right slope.

That sounds like what I want. Thanks!