Dealing with Low City Water Volume

[arpt209]

Wow! Sounds like an episode of "Tim the tool man Taylor" turbocharging his plumbing system!
I think a 1" supply line handles a 4 bath home just fine

The reason I went so big is that thee expensive part of installing an underground waterline is the digging. I didn't want to end up "okay but it could have been better" after spending the money to hire the backhoe.

 

[Larry Caldwell]

The reason I went so big is that thee expensive part of installing an underground waterline is the digging. I didn't want to end up "okay but it could have been better" after spending the money to hire the backhoe.

You did right. Every foot of pipe run causes a drop in pressure proportional to the cube of the flow rate and inversely proportional to the square of the pipe diameter. For running over 120 yards, a 2" line would have been appropriate sizing. Going just a little bigger didn't hurt anything. A 1" line would have been inadequate.