]I have the above system for a few years, and have recently replaced the RO membrane, and both pre and post filters. Now we notice a taste to the water, and a precipitate in the ice cubes.
I'm not sure I have the two lines running through the membrane canister installed correctly. I'm afraid I may have switched them, but when I try reversing them I get a pulsing of the water, as pressure builds then is released. Reversing these two lines results in no noise, and seemingly normal operation. We also have much more volume of water with the new filters and membrane.
It would be great if someone could post a pic of which line is supply and waste for the RO canister. The 'product' line is at the other end so I could not have mixed that up. The manual is surprisingly weak in identifying these lines.
Any other ideas?