Packhorse:I assume you dive for said golf balls in a lake.
If on the other hand you dive for them in the ocean, I would put them all in a catch bag, tie a rope to it and tow it behind the boat while doing 50kts back to the boat ramp.
I heard this method works well with mussels too.
Yeah, all fresh water balls. I guess I'll try the washer machine. But some of theses balls have black stains on that an overnight soak in bleach has not affect on...