Waterflow: estimation
Waterflow: estimation
(OP)
A useful rule of thumb to estimate water flow if you don't have a flow meter. Measure the distance from the end of the pipe to that point where the pater has fallen 4". A T-bar is useful for this Q (the usgpm) = D(1.28d squared ) where D is the distance drom end of pipe and d is pipe diameter (both in inches).





RE: Waterflow: estimation
RE: Waterflow: estimation
You can download the US Army program here, it's in the public domain.
http://www.cecer.army.mil/USMT/WHAMO/whamo.htm
cheers
GAllen