Standing Water on a Pool Cover: When I Pump and When I Wait

Hey everyone, Al here! Last time, we picked the right winter plug for the plumbing. Today we are going back to the most visible fall problem: a puddle growing on a solid pool cover. Some water helps a traditional cover stay put, but too much adds weight, stretches seams, and pulls the edges inward. The trick is knowing when to pump without accidentally draining the pool.

A Shallow Puddle Is Not an Emergency

A traditional solid cover normally rests on the pool water, so it will not stay perfectly flat. I don’t panic over a shallow, manageable puddle in the center if the cover still has even overlap, the water bags are secure, and no storm or freeze is approaching.

It is time to act when water spreads across a large area, the cover pulls tight at the corners, water bags begin to roll, or leaves clog the low spot. Pump before freezing temperatures as well. A thick sheet of ice is heavy, difficult to move, and capable of stressing an already weak cover.

How to Pump Safely

• Inspect the cover for holes before starting.
• Set the pump in the lowest surface puddle without walking onto the cover.
• Clear leaves from the intake with a soft brush from the deck.
• Route the discharge well away from the pool, equipment, and walkways.
• Watch the pool waterline while the pump runs.

That last check matters. I always watch the pool waterline while the pump runs, and our technicians do the same. If the cover has a hole, a pump on top can pull pool water through the opening and quietly lower the pool. If the surface puddle does not shrink or the pool waterline drops, stop the pump and inspect the cover.

Why the Pump May Stop Moving Water

If the motor runs but the water stays put, check for a blocked intake, kinked hose, trapped air, frozen discharge, or a loose hose connection. Unplug the pump before clearing debris. For a Little Giant APCP-1700 with a damaged or missing hose connection, we carry the Little Giant 177343 garden-hose adapter.

Never use the electrical cord to lift or drag a pump. Keep every electrical connection dry and protected according to the manufacturer’s instructions, and replace a pump with a damaged cord rather than taping over it.

After-Storm Routine

Once pumping is finished, reset any shifted water bags and check the cover overlap on all four sides. The whole job takes only a few minutes when problems are caught early.

In the next post, we’ll switch to mesh safety covers and deal with two problems that show up after the first few windy weeks: loose springs and anchors that refuse to move.