My uncle gave me a small pancake air compressor for my garage and to use around my house.
Rusty water in air compressor tank.
As the pressure increases water vapor condenses back into a liquid.
01 01 2013 10 10 pm 7.
Just a guess here as i have never tried it on a compressor tank but i use evapo rust to remove rust from my tools.
The bottom is a bit thicker rust but the reddish stain where water sat on the bottom was pretty small so they must have drained it regularly in this florida humidity.
An air compressor works by squeezing air into a smaller volume under high pressure.
Evapo rust only attacks rust so it is safe to use.
It works quit well and it is reusable.
I seen a 75 years old air compressor tank rust thru pin holes around the mounting feet where it was welded.
3 tips for preventing rust in your air compressor tank.
25 january 2017 many air compressors have tanks that have to be filled with water while the machine is in use.
Pressurized air is not able to hold as much water.
It just ran a lot.
In general this shouldn t pose a problem but over time it can cause rust to develop inside the tank.
I keep a bucket in the garage that i drop rusty.
Not knowing the last time or how often the tank was drainind i drained it out the other day and a rust color like slude water came out.
Not a whole lot but it the color that worries me.