[1st filter change for my ro/di unit. Do I need to run 2-5 gal thru the filters and dump that water or is this only when you replace the membrane?
Thanks]
[I is most important when you replace a carbon filter because of the dust that will initial rinse off. If you have a storage tank hooked up to your RO/DI be sure to shut of the valve to it so the carbon dust doesn't go in there.]
[I run 5-10g of water through my RO unit every time I use it (I disconnect it after each use). One of these days I'll get around to setting it up so its always keeping my container full.
