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The Dolphin Difference

Tips to Preparing Pools and Cleaners for Autumn and Winter

Pool owners work tirelessly through the summer to ensure crystal, clear water to beat the heat. But with summer gone and fall beginning, care and storage tips must be performed to protect essential pool components and automatic cleaners from mother nature’s sometimes wicked elements.


Pools Need Year-Round Care

September 22nd marked the beginning of the fall equinox. From now until the Spring Equinox, the days become shorter and the nights longer. Kids are back in school, temperatures are dropping, and days spent at the pool are becoming less and less frequent. But the process of taking care of your pool doesn’t end when summer does. To ensure a hassle-free and clean reopening next spring, it’s important to continue caring for your pool and its respective cleaning system during the off season. Seasonal maintenance is essential to keeping your water playground and equipment looking their best and lasting for years.


Cooler, Northern Climes

Pool owners in cooler climes that experience rain and snowstorms with freezing temperatures will want to close their pool in winter months to protect valuable pool components from harm, ensuring an effortless re-opening when summer returns.


  1. Drain, Drain, Flow Away. Because excess water in pipes and motorized parts can freeze, even crack, resulting in costly repairs or replacements, the water line should be lowered 4-6 inches below the skimmer level. This allows you to clean and drain unnecessary water from the pump, heater, and pool filter. Also, old chemicals can be dangerous to use—toss any leftover product at season’s end.
  2. The Cover, Uncovered. Covers are essential. Not only do they offer some peace of mind as a deterrent to small children or wildlife, but a properly fitted cover can be the difference between sludge and clean, clear water in the spring. Adding 1”-3” of water on top of your cover will protect it from wind damage. Also, be sure to check cable tension and tighten periodically to keep the cover out of the pool.
  3. Don’t Blow Your Cover. Keep abreast of weather conditions to protect your cover, and thus your pool, from snow and ice damage. By connecting an air pillow to the center of the cover’s underside, surplus rain- or melt-water and other debris will disperse to the pool’s sides for easier cleaning. If necessary, pump excess water off with a cover pump or homemade siphon.
  4. The Perfect Chemistry. Chlorine and algaecide—just ahead of the colder season, the right combination of these two chemicals is the recipe for winter pool success. But too much or too little of either can result in a bleached liner or a green pool. In the case of the green pool, add more chlorine and monitor the filter process. Still green? Dose repeatedly with chlorine and algaecide, and supplement with an extra vacuum. And when spring comes back around, a good dosing of 1-2 gallons of liquid chlorine dispensed under a cover corner can put a pool back on track for re-opening.


Warmer, Southern Climes

Pool owners in the South are fortunate. Depending on the immediate weather, pools in these locales can be shown off, possibly even used, year-round. To ensure a clean, usable pool at that next poolside party, owners maintaining their pool during the “off season” should practice the same maintenance steps as they do throughout the rest of year.

  1. Can’t Fake Chemistry. Bacteria and algae can be harmful to a pool’s finish and fixtures. Because improper chemistry is more prevalent during the winter and fall months, be sure to closely monitor and test chemical levels, even if seldom used.
  2. Brush It Off. Pools left uncovered during “off-season” still require vacuuming, typically once a week. But pools situated underneath or near leaf dropping trees, may require more attention. Further, consider brushing your pool at least bi-weekly.
  3. Ring of Mire. Unhealthy bacteria breed at the water line, causing a ring of muck to collect. Don’t forget to scrub that funk away.
  4. Check Your Equipment: Properly working pumps and motors translate to clean pools. Inspect this equipment regularly to ensure component functionality. Remove and clean filters at least once every two weeks.
  5. On Routine = No Green: Routine maintenance will ensure a bright, sparkly pool year-round. Get in the habit and stick with a set maintenance schedule.


Protecting a Fish Out of Water

Pool owners know they can rely on their rugged and reliable Dolphin robotic cleaner to keep their pool spotless and sparkling while in use. But when fall and winter roll in, these robotic underwater wonders need love, too. Whether a pool is covered during off-season, or the owner is away on an extended winter holiday, a Dolphin pool cleaner should be protected from the elements. Maytronics recommends some tips to ensure every Dolphin has many seasons of fun in the sun.


  • Disconnect the Dolphin from its power supply
  • Drain all water from the cleaner
  • Remove, clean and reinsert filter bags or cartridges
  • Roll up the power cable, avoiding any kinks
  • Store the robotic vacuum upside down shaded from direct sunlight, rain or frost
  • Avoid storage area temps beyond 41°-113° F or 5°-45° C
  • Bonus Tip: Store unit on a sturdy Dolphin-sized caddy and under covering for best results


Dolphin pool cleaners from Maytronics ensure pools stay clean during busy summertime use. But during the off-season, pools and Dolphin systems need TLC to keep vital components in good working order. To ensure pump and motor-health, as well as water chemistry, maintenance procedures appropriate to the seasonal climate must be followed to prevent damage to vital pool components. And keep your Dolphin pool cleaner looking and working like new by prepping and storing it when not in use. Employ expert tips and best practices for winterizing your pool and storing your Dolphin robotic pool cleaner. The result? A smoother transition from the last dip of this season to the first dip of next season. Learn more about the Dolphin Difference.