How to Maintain a Water Tank

How to Maintain a Water Tank

To avoid bacteria, algae, and another buildup in your water tank, clean it regularly. They can hurt if neglected. To keep your tank and water clean and safe, follow the right practices. Even if you simply use the water for gardening, keeping your tank clean and hygienic will extend its longevity.

Water tank empty

If possible, connect a water hose to the exit valve or tap and drain any remaining liquid into the garden. The water left in the tank can be used for window cleaning or car washing, preventing waste. Empty the tank until the hose stops dripping.

Water interior cleaning

Manually scrub the tank interior with detergent and hot water.

Depending on your accessibility, a stiff brush, high-pressure jet, or water hose can also be used. Clean corners and joints carefully to remove all liquid. Sit the mixture for two hours.

Rinse the water.

Wash the tank. High-pressure hoses or water jets work best for this. Repeat until the exit water is clear. If this equipment is unavailable, fill the tank with hot water and leave it for a few hours. Empty the tank and collect it for disposal.

Disinfect tank and pipes

Disinfect the tank and pipes using antibacterial spray or bleach.

This cleans and sterilizes them. Fill the tank again and run the water through the taps to disinfect the pipes.

Empty and dry the tank safely.

Empty the tank and gently dispose of the chlorine-laden disinfecting water. Fill the tank with fresh water, wait 30 minutes, then cleanse the system again. Replace the cover properly to prevent dirt from entering your clean tank and let it dry. After drying, utilize the tank.

 Finding the Correct Water

Here we will discuss how to choose a correct water tank

Determine the expected rainfall.

Rainfall varies. Victoria receives 200–1000mm of rain annually. You can estimate rainfall by knowing your rainfall pattern. 

Compute rainwater harvesting capacity.

  • Each roof square meter gathers 1 liter of water for each millimeter of rainfall.
  • For 500mm of rain, a 200m2 roof can capture 100,000L.
  • Multiply your roof length by breadth to calculate its surface area. Multiply this value by your average rainfall. Rainwater harvesting capacity.

Calculate water needs.

  •  Consider your water’s use.
  •  Only for the garden? Do you water your garden weekly?
  • Victoria households use 25% to 50% of garden water. A 4,000-5,000L tank is needed to keep your plants green in summer.
  •  Laundry and bathroom? How big is your family and how much shower water do they use? How much water does laundry consume weekly?
  • The average person flushes 12L of water per day, using 210L per week! Washing machines take 50L–150L for each load, depending on efficiency.

Size your tank.

After combining your estimates from stages 1-3, you should know how much rainfall your area and roof size can gather and how much water your home requires.

Calculate the amount of water caught by the number of times your tank will fill each year to determine tank size. ASC Water recommends a least 4-week supply.

Place your tank

  • If it doesn’t block doorways or passageways, your water should be adjacent to a wall or fence. Rain water  weigh several tones when full, so they need a stable, level platform.
  • If your yard allows, round water are fantastic. Slimline water may be best for urban yards.
  • Round and slimline tanks come in tall or squat sizes in a range of colors to fit your area.
  • Underground water are the greatest space savings, so consider installing one. This arrangement requires a water pump to draw water out of the tank for domestic usage.
  • Rainwater can be installed under decking in dense metropolitan areas. It maximizes unused space.

Choose tank materials.

Tank materials vary. Each material has its best usage. Depending on the tank layout, fiberglass, Colourbond steel, and concrete are popular.

When Should You Replace a Water Tank?

These are some signals you should replace your tank water heater.

  • Tank Leaks.
  •  Rusty Water. Corrosion inside your tank is another sign.
  •  Tank Rust.
  •   Less hot water.

What Are Water Tank Types?

  • Underground fiberglass tanks.
  •  Fiberglass subterranean tanks are non-corrosive.
  •  Carbon Welded Steel Tanks.
  •  Pillow Tanks.
  •  Folding Tanks.
  •   Bolted Steel Tanks.
  •   Polyethylene Tanks.
  •   Corrugated Steel Tanks.
  •    Above Ground Fiberglass Storage Tanks.


Finally, regular water maintenance ensures water quality and safety.

Routine tank inspections can discover leaks, cracks, and corrosion that need repair or replacement.

Proper water maintenance ensures system durability, efficiency, and safe, clean water for drinking, cooking, and hygiene.