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3 Essential Tips For Maintaining Your Hot Water System

Foreshore Plumbers • February 24, 2025

A properly maintained hot water system in Forster is essential for reliable, energy-efficient hot water in your home. Without regular upkeep, you may experience problems such as poor heating performance, rising energy bills, or even a system breakdown. Fortunately, a few simple maintenance tasks can help extend the life of your hot water system and prevent costly repairs. Here are three essential hot water system maintenance tips to keep your system running efficiently.

1. Check the Pressure Relief Valve Regularly

The pressure relief valve (PRV) is a critical safety feature of your hot water system. It prevents excess pressure build-up that could damage the tank or cause dangerous leaks. Over time, this valve can wear out or become blocked, leading to malfunctions.

How to check your PRV:

  • Lift the valve’s lever slightly to release some water.
  • If water flows freely and stops when you close it, the valve is functioning correctly.
  • If no water leaks, the valve may need replacing.

Why this matters:

  • Prevents excessive pressure that could cause system damage.
  • Ensures the safety of your hot water system.
  • Helps maintain efficiency by allowing proper pressure regulation.


Checking your PRV every six months can help you catch potential problems before they lead to expensive repairs.

2. Flush the Tank to Remove Sediment Build-Up

Minerals and debris from water can accumulate at the bottom of your hot water tank, reducing efficiency and causing overheating. Flushing the tank removes this build-up and keeps your system running smoothly.

How to flush your hot water system:

  • Turn off the power (electric) or gas supply.
  • Attach a garden hose to the drain valve.
  • Open the valve and let the water drain completely.
  • Close the valve, remove the hose, and refill the tank before turning it back on.

Benefits of flushing the tank:

  • Improves heating efficiency.
  • Reduces energy consumption.
  • Prevents corrosion & extends the life of your system.


An annual flush is recommended to prevent sediment accumulation and ensure optimal performance.

3. Schedule Professional Servicing Annually

While DIY maintenance is useful, a professional plumber should inspect your hot water system once a year to identify potential issues before they become major problems.

What a professional service includes:

  • Checking for leaks or rust.
  • Inspecting the thermostat & heating element.
  • Testing the anode rod for corrosion.
  • Ensuring all components function correctly.

Why professional servicing is important:

  • Keeps your system running efficiently.
  • Helps prevent unexpected breakdowns.
  • Ensures compliance with manufacturer warranties.


Regular servicing improves performance and prolongs the lifespan of your hot water system.

Keep Your Hot Water Systems in Forster in Top Condition

At Foreshore Plumbers, we offer expert hot water system maintenance in Forster to ensure your system stays reliable and efficient. Whether you need a pressure valve check, a system flush, or a full inspection, our experienced plumbers are ready to help. Book your maintenance service today!

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