No, 70 PSI (pounds per square inch) is not technically too high, because it remains below the 80 PSI maximum limit mandated by standard residential plumbing codes. However, 70 PSI sits at the higher end of the acceptable spectrum and may cause minor issues such as slight water hammer noises when faucets shut off quickly, or accelerated wear on rubber washing machine hoses over time. If you prefer a safer buffer, you can adjust your pressure reducing valve slightly downward to 55 or 60 PSI. Verification: Check your pressure gauge and monitor plumbing joints for any signs of weeping.
1 votes
Marked as accepted