Water Tank Cleaning Tips: Has the water tank turned black due to dust and algae? Glow in 2 minutes with these 5 home remedies without chemicals – ..

By Samira Vishwas On Jun 14, 2026

Due to dust storms during summer and rainy season and pre-monsoon rains, water tanks kept on rooftops get dirty very quickly. Many people fill water in the tank every day, but do not pay attention to its internal cleanliness for months. The result is that a thick layer of soil, mud and green algae accumulates on the base and walls of the tank.

Due to a dirty tank, dangerous bacteria start growing in the water, due to which the water starts smelling and its quality gets completely spoiled. This contaminated water is neither fit for drinking nor is it safe to bathe in, because there is a risk of skin infection and stomach diseases. If you are also worried about your dirty water tank, then we are telling you some of the best home remedies (Smart Kitchen Hacks), which will make your tank shine like new from inside in just 2 minutes without any expensive chemicals.

First and foremost step: Empty the tank completely

Before starting cleaning the water tank, the first thing to do is to switch off the motor (water pump) and also lock the valve of the main water supply going to the house, so that water does not fill in between during cleaning.

After this, open the lower outlet valve of the tank and drain out all the water.
If some water remains at the bottom, dry it completely with the help of a bucket or mug and a cotton cloth.
Keep in mind, only when the tank is completely empty and dry, the soil and algae accumulated inside it will be clearly visible.
safety precaution: If you are going inside the tank for cleaning, take special care as the moss makes the inside extremely slippery, leading to the risk of foot slipping and injury.

These 5 easy home remedies will clean your tank within minutes

If you don’t want to use acids or harsh chemicals to polish your tank, follow the safe methods below. in hands while cleaning Rubber Gloves And definitely wear a mask on your mouth.

1. Clean with common salt present at home

If you want completely safe and chemical-free cleaning, then salt is the best option.

Method: Prepare a thick solution by mixing half a kilo of salt in a bucket of water.
Sprinkle this solution thoroughly on the walls of the tank and the mossy areas with the help of a mug. Where there are more stubborn and dark stains, rub dry salt directly there.
Leave it like this for 30 minutes. The effect of salt loosens the accumulated grease, algae and bacteria in the tank, which can then be easily flushed out by scrubbing with a long-handled brush or coconut broom.

2. Magical use of Alum

Alum is the oldest and sure shot remedy for purifying water and cutting accumulated dirt.

Method: Make a good solution by mixing about 20 to 30 grams of alum powder in a bucket of water.
Pour this alum water on the inner parts of the tank and rub it with a jute sack or nylon brush. The anti-bacterial properties of alum instantly remove the layer of dirt and the tank shines like new.

3. Elimination of bacteria with bleaching powder

The use of bleaching powder is considered the most authentic way to completely disinfect the tank.

Method: Prepare a liquid mixture by adding 1 to 2 teaspoons of bleaching powder in 1 liter of water.
Apply this solution to the entire tank with the help of a brush and leave it for 15-20 minutes. After this, wash the tank by rubbing it with clean water.
After bleaching, fill the tank half full of water once or twice and drain it, so that the smell of bleach goes away. After this, when you fill fresh water, crystal clear water will come from the taps.

4. Strong combination of vinegar and baking soda

If the tank has become very black and smelly, use white vinegar and baking soda.

Method: Mix one cup of vinegar, two teaspoons of baking soda and a little detergent powder in a bucket of water.
Apply this powerful solution on the walls of the tank and leave it for an hour. After this, rub the walls by tying a cloth or brush to a stick. The moss and grime will form a crust and fall off on its own.

5. Centuries-old grandmother’s recipe: Jamun Wood

Do you know that even today in villages, jamun wood is used to keep the water of wells and ponds clean and sweet for years? Jamun wood contains natural elements that prevent green algae, algae and fungus from growing in water.

Method of use: When your tank is completely cleaned by the methods mentioned above, fill it with fresh water. 2 to 3 small pieces of jamun wood Or put a small block inside the tank. This wood will remain immersed in water and will act as a natural purifier. With this, your water tank will remain completely clean from inside for months and the water will never smell.