Small compressor for diving.
I have a Brownie''s electric third lung compresser and a 75 foot line I use to clean my boat bottom. Picked it up for $600 used. You just change the air intake filter when needed and you can dive all day on your boat. Just looked in a Brownie''s catalog and you can by a small electric one new for $800 with hoses,reg,ect. They are located in Ft Lauderdale,FL or on the web at WWW.browniedive.com Get dive certified any way, you will never regret doing it and it is good for life.