I'm tired of my parents complaining how their lawn looks. My mom wanted to sod the lawn (again) this fall, she wanted a cost. Instead I told her to install an irrigation system to keep the lawn alive. So that's what we're doing. However, the house itself has poor water volume. You can't open two faucets and have good flow, I would have figured most of the problem is due to the internal plumbing of the house. No way in hell I would tap into an inside line for the irrigation system. So cross connect as close to the meter as possible, that being about 10 feet from the meter. 5/8" meter, 3/4" copper service line. After we installed the backflow I wanted to see what water we had to work with. I figured it should have been much better because it's not running through the house and out. Yeah, I was wrong. Roughly 4.5 GPM. Pretty pathetic. What should only be two zones (maybe even one with the best volume) will turn into four. Used a 3/4" brass compression fitting branching off to 1" PVC to 1" shut off valve, then to backflow (Febco D/C 850, 1"). Ain't my plumbing... Meanwhile, two houses away (another property they own) the volume is the best I've ever seen. Same meter size, same service line from meter. I'm thinking something is wrong between the city line to the meter, like the line is partially crushed, corroded, or something???? Anyone ever ran across such poor volume? BTW: static pressure runs about 90psi. Had to install pressure reducer down at their other property.