Fixture & Valve Replacement

Purpose

Procedures for general fixture and valve replacement work.

Replacing shutoff valves, supply stops, hose bibs, ball valves, PRVs, or miscellaneous fixtures

Shut off water upstream (main or branch shutoff)

Drain the line by opening a downstream fixture

Remove the old valve — compression, solder, or threaded connection

Install new quarter-turn ball valve (preferred over gate valves)

Restore water and test for leaks

Shut off main water supply

Relieve system pressure by opening a fixture

Remove old PRV — note the flow direction markings

Install new PRV in the correct flow direction

Set to desired pressure (typically 50-60 PSI for residential)

Restore water and verify pressure with a gauge

Shut off interior supply valve for the hose bib

Remove old hose bib — may be threaded or soldered

Install new frost-proof hose bib if applicable (recommended for Ohio climate)

Ensure proper pitch — slight downward angle toward exterior for drainage

Restore water and check for leaks inside and outside

Check existing pre-charge pressure with tire gauge

If tank is waterlogged or pre-charge is lost, replace the tank

Pre-charge new tank to 2 PSI below system pressure before installing

Install on cold water inlet to the water heater

Ensure proper support — expansion tanks are heavy when full

Always use new fittings and connectors — do not reuse old compression nuts or ferrules
Quarter-turn ball valves are the standard replacement — they are more reliable than gate valves
When replacing valves, check adjacent connections for corrosion or wear
PRV replacement is a high-value service — present as a system protection upgrade
Document all replacements with before/after photos