Questions for Evaporust Users

I absolutely love Evaporust, i use it all the time... To keep it lasting longer i try to remove all the loose rust and degrease it really good, after a good soak i take the part out and hit it with 0000 steel wool and rinse it in the sink and then back into the evaporust for another soak... i find by cleaning the part half way through keeps the product cleaner longer and also i find that temperature plays a huge part, i have some parts soaking on my hearth next to my pellet stove, in the summer i just leave it in the sun... i will agree it has got expensive lately... good luck with your projects...Rich