Quote:
Originally Posted by zewks
What happens if you blow your lines out with more than 40 to 50 psi?
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That's the danger right there ...... using too much pressure may damage fittings/connections or the lines.
I think at 40-50 psi you are probably OK.
Anti-Freeze is always a good idea for those areas and spots where the water is difficult to evacuate from low lying lines, inside cavities and/or pumps.