How do you clean and disinfect a water tank?

Why does the tank need cleaning?

Dust and heat leave sediment on the wall and the floor. Over time that becomes a smell, a colour, or insects, and it reaches the taps even when the water source is clean. Cleaning the tank is not the same as clearing a drain: the drain carries used water away, and the tank stores the water you drink.

What should you do if the water is cloudy or an insect appears?

• • Stop drinking and cooking from this tank until the clean is finished.
• • Do not add chlorine or a random chemical on top of the water that is already in it.
• • Empty the tank if you can do that safely, without climbing inside.
• • Do not open the hatch of a closed ground tank except for a crew with ventilation and equipment.
• • After washing, rinse more than once before refilling, and do not drink the first run if a smell remains.

How often, and when should you not wait for the date?

The usual interval is six months, and sooner after dust, building work, or a change in taste. If the smell is only at the kitchen sink and the rest of the house is normal, the drain may be the cause rather than the tank: read how to clear a kitchen drain. The price before the crew arrives is in how to estimate a maintenance cost.