What causes poor water quality in my Pentair Water Filtration System?
- JJessica CooperAug 28, 2025
Poor water quality from your Pentair Water Filtration System may be due to an open bypass valve; ensure it is closed. Channeling can also cause this, so check for service flow that is either too slow or too high, and inspect for media fouling. Finally, verify that the mixing is set correctly.













