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Thread: Stormwater - 90mm v 65mm
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2nd May 2007, 08:09 PM #1
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Stormwater - 90mm v 65mm
Hi all,
I am putting in a sump to trap some rainwater runoff from a new paved area.
I'll be connecting it into an existing 90mm line that runs to the street, however to help me get fall I was looking ar running 65mm pipe. From near the top of the pit to the bottom of the 90mm existing line.
I know that 65mm will move less water than 90mm however I am trying to figure out if 65mm will suffice.
Cheers
Geoff
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2nd May 2007 08:09 PM # ADSGoogle Adsense Advertisement
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2nd May 2007, 08:47 PM #2
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65mm will move half as much water as 90mm. You decide if that is enough size
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2nd May 2007, 08:50 PM #3
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Didn't know they made 65mm SW pipe, was under the impression 75 and 90mm were standard?
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2nd May 2007, 10:01 PM #4
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sorry - you are correct I meant to say 75mm
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2nd May 2007, 10:46 PM #5
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yeah, you decide and stop buggin us
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2nd May 2007, 10:51 PM #6
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75mm will be heaps, unless you are looking at runoff from over 200 square metres
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2nd May 2007, 10:55 PM #7
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Can you put 2 x 75mm ones side by side to get the flow
