For 1msq of roof you need 1cmsq of downpipe.
There need not be any water at all in the pipe. The capacity of the pipe is approx 3.4 Imperial gallons.
There need no be any water at all! The capacity of the pipe is 8.11 litres approx.
There need not be any water in the pipe! The volume of the pipe is 1044 Imperial gallons
If that's 3/4 feet, there will be 48 of them.
Oh, dude, let me break it down for you. So, to find out how many gallons 5000 feet of 18-inch pipe will hold, you first need to calculate the volume of the pipe in cubic feet. Then, you convert that volume into gallons. It's like a math problem, but for water enthusiasts. So, grab your calculator and get ready to dive into the world of pipe capacity!
The volume of this pipe is 261.8 cubic feet.
A 4-inch diameter pipe that is 3,000 feet long has a volume of: 261.8 cubic feet.
12,239.9 gallons of water per 3,000 feet.
The inside pipe is 3/4 inch and is a vent tube. Yes you need it.
Need to know how long the pipe is first.
you would need 3 feet of pipe
It will depend on the area of cross-section of the pipe.
Foul Air
you need a box before your pipe run has 360 degrees of bend, or 4, 90's
You can put a liquid pipe snake down your drain or put a hose down there
updraft
3rd pipe (1) - elbow down to right 4th pipe (2) - elbow down to right , left to down, down to right 6th pipe (3) - down to right, right to down, down to left, right to down, down pipe, up to right, right to up, up to left, right to up, down to left