General Electric GE SmartWater Household Water Filtration System - GNWH38F "tri clean dual" Questions

clean water heater or replace it. i have drained down a couple of them and took out gas valve and cleaned and put back in worked fine. If you get me a model # i can look it up and tell you some things

...dual FQSVF filters). Tried replacing filters. Little improvement. Water pressure in the rest of the house is normal. Any suggestions? I solved the problem! The system's manifold (the plastic base you ...