>>2009086henlo, this is patrick.
Yes I have autism and want my pump to last forever+not explode eventually due to rust.
It's much easier for me to drain every use, then remember every month or so to drain since I don't use it often.
>>2009110water in tank due to the way compressors work.
It builds up over time depending on how much you use and where you live. Takes a long ass time but they can rust away and eventually not be able to hold pressure and explode.
I am not draining the compressor oil.