Watch the Gauge
Why a High Filter Pressure Means It Is Time
Your filter gauge is the most honest indicator on your equipment pad. When a filter is freshly cleaned it settles into a clean starting pressure, and that number is your baseline. As dirt, oils and fine debris fill the cartridges or grids, the filter has to work harder to push water through, and the pressure climbs. Once it rises roughly 8 to 10 PSI above that clean baseline, the filter is loaded and a clean is overdue.
The symptoms show up all over the pool. You will notice weaker flow from the return jets, a pool that no longer turns over the way it should, and water that drifts from sparkling to dull or cloudy even when your chemistry looks fine. The pump is also straining against that restriction the entire time, which wastes energy and shortens the life of an expensive motor.
Cleaning at the right moment fixes all of it at once. Flow comes back, the water clears, and the pump gets to breathe again. That is exactly why we record your PSI before and after every clean, so you have proof the pressure dropped back where it belongs.
