Pumps, protection & specialty
Thermal Expansion Control
Plumbing issues you are facing:
- Water heater temperature & pressure relief valve dripping constantly
- Pipes banging or shuddering when water heater heats up
- Toilet fill valves opening randomly without flushing
- Faucets dripping only when water heater is heating
- Water hammer sounds occurring during heating cycles
- Pressure relief valve replaced multiple times and keeps failing
- City installed a pressure-reducing valve or check valve (closed system)
- Water heater manufacturer warranty requires expansion tank
What D&H PLUMBERS fixes:
- Test system pressure and verify presence of closed system conditions
- Calculate proper expansion tank size based on water heater capacity
- Install expansion tank on cold water inlet near water heater
- Pre-charge tank to match system pressure requirements
- Verify relief valve stops dripping after tank installation
- Check all fixtures for proper operation without pressure spikes
- Test expansion tank annually and replace if waterlogged or failed
- Ensure compliance with code for closed plumbing systems
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