Contemporary models may have upgraded features that are usually seen in in-ground models, including advanced filtration systems and pumps to keep them clean. However, even above-ground pools that have built-in systems need a little hands-on work regularly to stay clean and in good working condition. Petegar / Getty Images  Complete these tasks daily: 

Test the pH level to ensure it’s between 7.4 and 7.6.  Test the chlorine level, which should be between 2.0 and 4.0 ppm.  Check the water level, which should be around mid-skimmer. Empty the skimmer and pump baskets.  Check filter pressure and pump operation.  Skim the surface of the water.

Once a week, complete these tasks: 

Test total alkalinity to make sure it’s between 80 and 120 ppm.  Properly dose with algaecide, clarifier, and metal control.  Clean the pool deck and surrounding area.  Add chlorine tablets.  If the pressure gauge rises 7 to 9 psi, backwash or clean the filter. 

The pool’s pump circulates the water, but sometimes it doesn’t do a great job in these dead spots. You can improve the situation by installing return jets that are multi-directional but keep a pool brush on hand to manually circulate water, too.  Westend61/Getty Images  Other hazards that could damage the pool’s wall include:

Falling tree branchesNesting insects under the top railPecking wildlife at ground levelMowing too close to the wall or shooting debris from the mower hitting the wallAccidents resulting from bike riding too close around the pool

Stefan Cristian Cioata / Getty Images

Cleaning the pool thoroughly, and adding a winter chemical kit to the water.  Removing chemicals, cleaning supplies, and the pool’s ladder to store in a safe, dry area.  Running the filter for one hour before disconnecting the motor and pump, also to be stored in a safe, dry place. Lowering the water level to below the return and skimmer. Don’t drain the pool entirely, as it can be damaged by hydrostatic pressure from ice conditions. Adding pool anti-freeze—not automobile anti-freeze—to the plumbing and installing threaded winter plugs to keep water out of the pipes.  Covering the pool with an appropriately sized winter cover.

An impeller is a small part of your pump which creates the flow of water from pump to filter. But it can become clogged with leaves and other debris it reduces, and often stops, the flow of water. To unclog the pump’s impeller, turn off the motor first. Find the location of your impeller with the help of your pool owner’s manual. Take out the basket and with the help of a screwdriver or an impeller cleaning kit, dig in there to remove the clog of leaves and debris. Your pump will then become efficient once the clog is gone.

Keeps the water clean from accumulating debris and insects, especially during breezy days and nightsReduces water evaporation to keep your levels stableExtends the swimming season by keeping the water warmer

You typically can’t shock a pool too much, even if you put in a couple of bags of powder at once. For safety purposes, it’s best to shock a pool at night so the sun doesn’t dissolve it, abstain from swimming until the next day, and leave the pump running all night to circulate the powder.