Curtis, What is the best way to flush out my pump saver?

I would not worry too much about it unless you have a lot of resin in there.  If so, I would unscrew the fittings on each and and pour out as much as you can.  Then pour some soapy water in, shake it up, and pour it back out.  Then rinse with fresh water and reinstall the fittings with teflon tape.