As you know hot water in your day to day living is a commodity that we take for granted. Often hot water systems are never serviced, and are only looked at when they break down.
At the least your system should be serviced every 5 years. You need to have all the valves replaced and a general service done. This can ensure that a major problem will not occur. It can also help save you money in the long run.
The most common call we get is after hours about a system failure, if this happens in the middle of the night or in a busy holiday period. Your family can be without hot water for up to 2 to 3 days.
A good regular check you can do is release the pressure relief valve. Please find below some handy information from Rheem.
A temperature pressure relief valve is installed on storage water heaters. This valve protects the water heater, by relieving pressure and allowing water to escape, as the water inside the cylinder expands due to heating. Not sure where to find this valve?
A small volume of water may discharge from the valve during the heating cycle. This is normal operation. However, if it discharges more than a bucket full of water in 24 hours, there may be another problem
A continuous dribble may indicate a small particle of foreign matter may be caught in the valve. Try gently raising the easing lever on the relief valve for a few seconds. This may dislodge any particles and clear the fault. Release the lever gently
Steady flow for long periods (often at night)
This may indicate the mains water pressure sometimes rises above the designed pressure of the relief valve. Ask your installing plumber to fit a pressure limiting valve
Warning: Never replace the relief valve with one of a higher pressure rating.Contact Mr Plummer