Although winterizing a pool is a chore most people would like to avoid, it is a necessary ritual that is critical for protecting the pool during the colder months.
Winterizing a pool can be complicated, and it is usually best left to a professional. If it is done incorrectly, extensive damage to the pool and its components can result. Take these steps to ensure your pool makes it through the winter and is ready for fun again at the next sign of spring.
Balance the pool's chemicals. Start balancing the chemical levels about a week before closing the pool. Alkaline levels should be no lower than 80 and no higher than 120 parts per million. Two hundred is a good ppm level for calcium hardness.
Lower the water level and drain those pipes. The specifics are different for various types of pools. A good rule of thumb is to lower water level somewhere between 3 to 5 inches beneath the lowest level of plumbing. When it comes to draining water from pipes and equipment, make sure you clear all water from every filter, heater, pump and chlorinator. If water is left behind, it will freeze and can damage the pool's components.
Clean, clean, clean. The pool should be as clean as possible before closing and covering. Leaves and other debris that remain can promote algae growth, stain the liner or cause other problems that create more work when reopening the pool next spring. With a vacuum, brush and skim, you should be good to go.
Remove pool accessories. Ladders, handrails, diving boards and slides should be removed. The pool cover will not fit with these accessories in place.
Put a lid on it. Pool covers should fit tightly, leaving no holes or potential gaps where leaves or other debris can find its way into the pool. Air pillows under the cover will help support it when water levels are lowered. For above-ground pools, air pillows can help protect the pool walls by absorbing the pressure created as the pool's water freezes.