Pipe Flow Calculations Forum

I need to have 35 GPM to pass the inspection. I have found some information of the internet that claims a 3/4 inch main can achieve 35 GPM, so if I can get that flow to my guest house 100 feet away, I will pass. I have had some installers tell me t hat the pressure will be the same anywhere in the s...

So its all 3/4 inch right now. I checked the pressure at my first hose bib that comes up to my house from the main water line. At this hose bib it was 77psi. I am going to replace the 3/4 inch line from the main at the curb with a 2 inch PVC line. I will install a connector to attach to the my 3/4 i...

Is this possible? I thought I was looking for a number more like 35 GPM? 370GPM seems like a number that would never be questioned. My main is 3/4 inch, are you calculations taking this into account? I am not trying to argue, if you are right than I am going to save money for sure, but it just seems...

I know some of you will blast me, but this might be fun for others. I have to have fire sprinklers installed in a guest house I am building in the back yard. I have a 3/4 inch main coming from the city. I have about 75 PSI coming in. I have about 100 feet to get from the meter to the guest house. I ...