I am getting down to the end of a case of wax. Now I'm getting a lot of trash in the wax that is showing up in the candles. My method of letting the trash settle to the bottom and pouring off the clean wax is no longer working. I need a way of cleaning/filtering the wax, but I don't think a strainer would work. The wax would harden up as it hit the screen, or am I off base?