Repair or replace your hot water system? How to decide
A new valve or element can keep a heater going, but a leaking tank can't be saved. How plumbers make the call, and what a proper replacement involves.
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Key takeaways
- A leaking tank body can't be repaired. Once the tank itself leaks, replacement is the only fix.
- Most other faults, such as a thermostat, element, relief valve, tempering valve or gas igniter, can usually be fixed by replacing that one part.
- Weigh a repair against the system's age, its history of faults and whether it still suits the household.
- A replacement has to meet current rules on temperature control and pressure, which can mean valves the old system never had.
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