Well im hooking my ro I got from pwc as we speek and there direction are a bunch of bull :pooh:. It says I need to flush the membrain out if it gets silty. The package that the membrain came in says to flush it out for a min of 2 hours ,its says it may have this chemicail in it to blah, blah, blah,does it or dont it? The instructions to are not really clear on how to flush the membrain out. Can some one help me here that might have done this? please help. LOL its two in the morning here and Im ready to get this over with.