Ask this question in most of the country and you'll get a comfortable answer: every week or two in summer, taper off in fall, close the pool in winter. Florida doesn't work that way, and pretending it does is how pools here go green.
The short answer for Volusia County: your pool needs attention every week, all year. Here's why that's not just a pool company talking its book.
Florida is a different planet for pool water
Three things make our pools work harder than pools almost anywhere else:
Sunlight. Central Florida's UV index lives at "very high" for most of the year. UV destroys free chlorine directly — an unstabilized pool can lose most of its chlorine in a single sunny afternoon. That's why stabilizer (cyanuric acid) matters here, and why chlorine demand never really drops the way it does up north.
Heat. Warm water is algae's favorite thing. Our pools sit above 80°F from roughly April through October, which means algae can go from invisible to visible bloom in days, not weeks. A missed week in July is a real gamble.
Rain. Summer afternoon storms do two nasty things at once: they dilute your carefully balanced chemistry, and they wash phosphates — fertilizer, leaf litter, roof runoff — straight into the water. Phosphates are algae food. Every storm is a small reset of your water balance.
What "weekly" actually needs to include
A drive-by skim isn't a cleaning. A real weekly service touches four systems:
- Physical debris — skim the surface, empty the skimmer and pump baskets, vacuum settled debris. Debris that decays in the water becomes algae food.
- Surfaces — brush walls, steps, and the waterline. Algae starts as an invisible film on surfaces before it ever tints the water. Brushing disrupts it while it's still losing.
- Chemistry — test and adjust chlorine, pH, and alkalinity every single week. Small weekly corrections keep water stable; big monthly corrections keep water lurching between extremes.
- Circulation — check filter pressure and flow. A pool that isn't moving water properly can't distribute chlorine, no matter how much you add.
The seasonal exceptions (they're smaller than you think)
Winter pools in Florida still grow algae — just slower. Water below 60°F slows algae dramatically, but our water rarely stays that cold for long. What winter actually changes is the type of work: less chlorine demand, more leaves (hello, oak drop in February), and the best window all year for deep-cleaning filters and correcting stabilizer levels.
So winter service isn't "less necessary" — it's differently necessary. Skipping December and January is how pools greet you in March with a science project.
What stretching to bi-weekly actually costs
We've inherited plenty of pools that were on a two-week schedule. The pattern is consistent: chemistry that's always catching up instead of holding steady, more shock treatments (which cost money and swing the water), shorter filter life, and a green episode every year or two — each one costing more than the service visits that would have prevented it.
Bi-weekly service in Florida isn't half the cost of weekly. It's most of the cost, for a fraction of the stability.
The DIY version
Plenty of owners do this themselves, and do it well. If that's you, the weekly checklist above is the job description, and our water chemistry cheat sheet has the target numbers. Budget 45–90 minutes a week and be honest with yourself about vacation weeks and busy seasons — they're where DIY pools go wrong.
And if you'd rather spend those hours actually swimming, that's the service we sell: weekly full service with photo proof it happened. Either way, keep the cadence weekly. Florida doesn't grade on a curve.