I need to move my compressor, will they function anyway up or must they be upright.

I could do with lying it on its side.

Yep no problems there Bob , There are oil less so no need to worry there .

Cheers

How much do they dislike water. Will they be ok under water as long as you do not turn em on .

I heard you can get a snorkle for them, does that mean you can use them under water .