Why does your air cooler rust?

Air coolers are still a popular and affordable way to stay cool during summer. However constant water and moisture can cause rust especially on the water tank and other metal parts.  If rust is ignored it can damage the cooler and weaken its metal parts over time.

Here are some simple ways to remove rust and protect your cooler.

Never leave water in the cooler

Water and moisture are the main causes of rust. When metal stays wet for a long time it reacts with oxygen and slowly starts to rust.

If you are not going to use the cooler for several days drain all the water. Wipe the inside and outside with a dry cloth and leave the cooler open for a while so the remaining moisture can escape.

Remove light rust with sandpaper

If you notice a small amount of rust on the tank or metal parts, first empty and dry the cooler.  Then gently rub the rusty area with sandpaper or a wire brush until the loose rust is removed. After cleaning wipe the area and make sure it is completely dry.

Use anti-rust paint

For areas where rust has started spreading an anti rust primer or metal paint can provide extra protection.  It creates a protective layer that helps keep moisture away from the metal and may slow down future rust.

Keep the water tank clean

Regular cleaning is important for preventing rust. Dirt dust and algae can build up inside the water tank and may damage the metal over time.

Empty and clean the tank regularly and avoid keeping old water inside the cooler for many days.

Drain the cooler before storage

When summer ends or you plan to stop using the cooler for some time do not leave it filled with water. Drain the tank wipe the cooler dry and leave it open for some time to remove any remaining moisture.

Get professional help for severe rust

If rust has spread widely the metal has started to weaken or an important part of the cooler is damaged it is better to contact a skilled technician instead of trying to repair it yourself.

With regular cleaning proper drying and timely water changes you can help keep your air cooler in good condition for longer.