I have a 15 yr old Kinetico RO system (model 518). New problem is this: after our recent filter change, the system "delivers" water very slowly. The first ~20oz come as normal then it slows to a trickle/drip. Wait a few minutes and it does the same. Makes filling the coffee pot very tedious.
I have a poor understanding of how it works so don't know the best way to diagnose and fix it. Thanks for your help!