[VINMAN]

I use a home made version of the elctric one shown above. Basically a jabsco pump on a 5 gal bucket. I have fitting with a valve on my oil pans. My race motors have 12 quart pans so this pump comes in handy. I used the dipstick tube pump before on other boats. it works, but i like to drain the pan all the way.
I know alot of guy with trailer boats that just drain it into the bilge and out the drain plug in the hull into a bucket. then they just clean up the bilge.