Years ago when I first started to water drop my boolits they would splash and generally get water all over. the major concern was obviously getting water droplets into my pot. I called Veral and he gave me a great tip. I took sponge rubber (the kind that is used in cheap pillows/ craft projects etc.) cut it into 1/2" squares (the size is not too critical as long as the boolit can easily displace it). To use it I fill a 5gal bucket 3/4 full with water. Put a couple of handfuls of sponge rubber on top of it, give the rubber a squeeze under water so that they will soak up the water and just barely float on the surface of the water. Then as I am casting I just drop the boolits onto the rubber, the boolits fall through and there is NO SPLASH. After the session is done I remover the squares, squeeze them out and let them dry.
Give it a try!
Photo 1 - rough cut foam
Photo 2 - foam soaked in drop bucket
The greatest advantages are:
A) I no longer worry about getting water in my melt.
B) I have to try real hard to miss a 5gal bucket.
C) The boolits are hard by the time they reach the bottom.