HydraCALC is set up to use either a city supply or a pump. There is currently no provision to choose use a tank or cistern, but there is a way to do it.
From a Customer: I have a 42 foot tall water tank. How do I use this supply in HydraCALC
Answer: You must first ascertain the elevation level of the tank that you are able to use per NFPA. For argument sake, lets assume 42 feet is the level allowed. That would give Static of 18.19 psi. Make the Residual slightly smaller (as it will error is the same as Static)
Put it in your city supply like this:
The flow used is not really relevant, as the slope is so gradual. But, it should be big enough to supply a pump if needed.
Comments