Normal city pressure is 45-60 PSI so that should be good. If they are PEX lines in 2010? they are pretty resiliant but i'd dare say 100 PSI. I almost never use my pump but use city water as I have an adjustable pressure regulator. I have yet to encounter too low of city pressure or that which I can't adjust to suit my needs.
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USN - RETIRED NUKE
Taunton, MA
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