Lately it seems like no matter what I do I can't remove all the emulsion from my screens when trying to clean them off for re-use. I've tried buying new emulsion thinking perhaps my previous batch had gone bad, gone from emulsion remover to bleach and back to emulsion remover and even tried mixing the two in desperation. I've tried soaking the screen in bleach for up to 4 hours, scrubbing the surface once every 15 to 30 minutes during that time, and still I get blotchy areas where the emulsion just won't full was out. I thought that it was because I was washing them out using the shower at my house so I tried bleaching them and using a garden hose this time but it's still not budging. The emulsion was applied with a scoop so it's even and not overly caked on the surface or anything that might cause this sort of thing. I can't figure this out and I'm going broke replacing screens. Any suggestions? Thanks.