Maintenance

How to keep your pool water crystal clear all summer

Five simple habits that prevent green or cloudy water and save on treatment costs — plus an easy weekly routine.

How to keep your pool water crystal clear all summer

Clear water isn’t luck — it’s the balance of circulation, filtration, chemistry and cleaning. With summer heat and heavy use, that balance slips quickly without regular attention.

1. Run the pump long enough

As a rule, all the pool’s water should pass through the filter at least once a day — that’s 8–10 hours of pump time in summer, ideally including the hottest daylight hours.

2. Watch chlorine and pH

Test at least twice a week. Free chlorine should sit between 1 and 3 ppm and pH between 7.2 and 7.6. When pH climbs, chlorine loses its power even if there’s enough of it.

3. Clean before dirt builds up

  • Empty skimmer baskets daily during leaf season.
  • Brush the walls weekly to stop algae taking hold in corners.
  • Vacuum the floor at least once a week, manually or with a robot.

4. Backwash the filter on time

When the filter gauge reads 0.5 bar above its normal pressure, it’s time to backwash. A clogged filter cuts circulation and invites cloudy water.

5. Shock after heavy use

After parties, rain or a heatwave, add a shock dose in the evening and leave the pump running overnight.

When to call in the professionals

If the water turns green, stains appear on the walls, or the water level keeps dropping, it’s time for a specialist. A regular care plan handles all of this for you — with a photo report after every visit.

The Karma Pool engineering team

Engineers who design, build and maintain pools every day — we write from projects we have delivered ourselves.

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