All calculatorsCalculator · Filtration

How many hours should you filter?

Not too few (green water) nor too many (wasted electricity). We use your pump's real flow, not the nameplate figure.

m³

Don't know it? Work it out here.

°C
m³/h

You'll find it on the pump's nameplate or manual.

Pool use

Filtration hours per day

Enter volume, flow and temperature.

It's a starting point. If the water stays clear and chlorine is stable, try half an hour less; if it turns cloudy, increase it.

Numbers don't add up?

We run a full water analysis with a photometer and microscope and tell you exactly what's needed.