[silver911rdb]

LPS makes a nice line of water based cleaners. I use LPS's Precision Clean Multi purpose cleaner/degreaser. It's sold in 1,5, & 55 gal containers and can be diluted with water or run straight. With any water based cleaner if you add heat they clean better. I use the above product in my heated parts washer and i like the way it works. It doesn't clean as quickly as safety clean but it does work well and is safer for you and the environment. You might want to add a heater element to your tank if you go the water based route. Maybe heat it up a few hours before you use it.
I'm an LPS distributor (among other lines) and have worked with their area rep and that's what he recommended as a cost effective cleaner for my parts washer. He also gave me a sample of T-91 cleaner. This stuff is supposed to be as effective as the solvent based cleaners but still non-solvent based and much safer. I haven't looked up the pricing on the T-91 but I think it might be on the pricier side. You can google these 2 products for more info. i hope this info helps you out.