I keep a bucket in the garage that i drop rusty.
Rusty water in air compressor tank.
3 tips for preventing rust in your air compressor tank.
Is it normal to.
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.
Not a whole lot but it the color that worries me.
In general this shouldn t pose a problem but over time it can cause rust to develop inside the tank.
An air compressor works by squeezing air into a smaller volume under high pressure.
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.
You would need to fill the tank and leave it over night then rinse it out and dry it.
As the pressure increases water vapor condenses back into a liquid.
Evapo rust only attacks rust so it is safe to use.
When a compressor draws in air the air is compressed to about 12 times normal atmospheric pressure.
Pressurized air is not able to hold as much water.
It just ran a lot.
It works quit well and it is reusable.
25 january 2017 many air compressors have tanks that have to be filled with water while the machine is in use.
I seen a 75 years old air compressor tank rust thru pin holes around the mounting feet where it was welded.