My CVZ-18 has the oil extraction line reinstalled last spring 2016, after I realized what a mess draining in the bilge ended up. My set up uses a flexible steel line with a male hose connection similiar to a garden hose. Connects similiar to a banjo fitting on the drain plug. It's designed for a direct connection, not a line snaked down the tube. So I've been using a 5 gallon bucket and vacuum pump, hose, and some adapters with mild success. Well, it works, but takes awhile. So I've been cruising sites for something better. Seems there are manual pump types, electric pumps, and air driven. What do you folks use? Any recomendations?