How To Get Water Off A Pool Cover Safely And Effectively

Accumulated standing water on a swimming pool cover compromises material integrity, creates drowning hazards for children and pets, and accelerates algae blooms that drain into the basin upon removal. Managing this excess moisture requires deploying a dedicated submersible pool cover pump, an automatic siphon system, or a heavy-duty manual siphon hose to prevent structural strain on both safety covers and solid vinyl tarps.

Pre-Operation & Equipment Checklist

Proper pool cover maintenance begins with assembling the correct tools to prevent liner punctures, stretched webbing, and premature material degradation. Failing to verify equipment compatibility or ignoring manufacturer weight load thresholds can lead to catastrophic cover collapse, depositing thousands of gallons of contaminated rainwater directly into your filtered pool water.

• Essential Gear, Tools, and Materials:

  
  
  
  • Submersible pool cover pump (minimum 300 to 1,200 gallons per hour capacity) or manual garden hose siphon.
  • Reinforced garden hose with a functional anti-kink collar and discharge routing path.
  • Extension cord rated for outdoor wet locations with a weather-resistant GFCI connection box.
  • Soft-bristle pool brush or deck broom for sweeping localized puddles.
  • Floating leaf rake and skimmer net to clear organic debris prior to pumping.
  • Utility gloves and waders if manual adjustments are required near the water's edge.

• Mandatory Prerequisite Knowledge and Standards:

  
  
  
  • Understand that solid pool covers cannot withstand point loads exceeding ASTM safety standards without adequate water tension supporting the perimeter springs.
  • Ensure the discharge water flows away from the pool's foundation, retaining walls, and electrical equipment to prevent localized flooding and erosion.
  • Verify that electrical power sources feature functioning Ground Fault Circuit Interrupters (GFCI) to mitigate electrocution risks in standing water.

• Estimated Budget and Duration Benchmarks:

  
  
  
  • Equipment investment ranges from $40 for a basic manual siphon to $150 for an automated, heavy-duty electric submersible pump.
  • Time commitment spans between 30 minutes to 3 hours depending on standing water volume, pump flow rate, and debris buildup.

Step-by-Step Pool Cover Water Removal Workflow

Step 1: Clear Organic Debris and Large Contaminants

Before activating any extraction equipment, remove fallen leaves, twigs, pine needles, and heavy sediment from the pool cover using a floating leaf rake or skimmer net. Allowing organic matter to enter the pump intake or siphon hose will immediately clog the system, burn out pump impellers, and stall water flow.

Pro-Tip: Sweep the cover gently from the edges toward the center depression using a soft-bristle pool broom, consolidating leaves into an easily manageable pile for manual scooping.

Step 2: Position the Submersible Pump at the Deepest Point

Locate the lowest point of the cover where the standing water has naturally pooled due to gravity. Place your electric submersible pool cover pump directly in the center of this depression, ensuring the base sits flat and stable without resting on sharp objects or protruding grommets.

Warning: Never submerge or handle an electric pool pump while standing directly in water unless you have verified that the power supply is routed through a tested and functional GFCI breaker.

Step 3: Connect and Route the Discharge Hose

Attach a standard garden hose securely to the pump outlet adapter, verifying that the rubber gasket washer is seated correctly to prevent high-pressure leaks. Lay the discharge hose flat across the pool deck, directing the terminal end at least 15 to 20 feet away from the pool edge toward a safe runoff area, storm drain, or lawn.

Pro-Tip: Ensure the discharge hose does not develop sharp kinks or loops, which create backpressure that forces the pump motor to work harder and dramatically reduces gallons-per-hour output.

Step 4: Power On and Monitor the Extraction Process

Plug the pump power cord into your GFCI-protected outdoor outlet and listen for the characteristic hum of the motor engaging. Monitor the water level closely during the first five to ten minutes to ensure the pump is actively priming, pulling water efficiently, and not cavitating.

Step 5: Complete Manual Siphoning for Residual Puddles

Once the submersible pump can no longer maintain suction and shallow puddles remain, disconnect the power and switch to a manual siphon hose or use a sponge mop for fine-tuning. Prime the siphon hose by submerging its entire length underwater to expel trapped air, sealing one end with your thumb, and releasing it at a lower elevation than the pool cover surface.

Technical Comparison of Water Removal Methods

Common Site Failures and Field Fixes

• Root Cause: The submersible pump motor hums loudly but fails to discharge any water.

  
  
  
  • Actionable Fix: Unplug the unit immediately, inspect the intake screen for hair, scale, or plastic debris blockages, and check the discharge hose for tight kinks or crushed sections.

• Root Cause: Water continues to pool on the cover even after pumping due to improper surface tension.

  
  
  
  • Actionable Fix: Adjust the underlying water level of the swimming pool itself; if the pool water drops too low, the cover sags inward, creating an unyielding basin that traps rainwater. Maintain pool water levels within 18 inches of the deck.

• Root Cause: The manual siphon loses prime repeatedly during water extraction.

  
  
  
  • Actionable Fix: Ensure the discharge end of the hose remains constantly lower than the intake end on the pool cover, and verify that no air pockets are trapped inside the middle coils of the hose line.

Frequently Asked Questions

Can I use my main pool filtration pump to drain water off the pool cover?

No, your primary filtration pump and skimmer system are engineered to pull water from the pool basin through dedicated main drains and skimmer baskets. Connecting a makeshift hose to pull water off the cover will introduce heavy silt, decomposing leaves, and sharp debris directly into your pool's pump basket and filter media, causing severe system failure.

How often should I remove water from my pool cover?

You should pump standing water off your pool cover whenever the depth exceeds two inches, or roughly every two to three weeks during rainy seasons. Allowing excessive water weight to accumulate strains the cover anchors, stretches the material, and makes manual removal significantly more difficult.

Is it safe to leave an electric pool cover pump running unattended?

Standard manual submersible pumps should never be left running dry, as the motor will overheat and burn out within minutes once the water level drops. If you prefer a hands-off approach, invest in an automatic cover pump equipped with an internal electronic water sensor or mechanical float switch that activates only when water reaches a specific depth.

What should I do if the pool cover is frozen solid in winter?

Never attempt to pump water off a frozen pool cover or walk across an ice-covered surface, as this risks puncturing the material and creating a drowning hazard. Wait for daytime temperatures to rise above freezing to allow the ice to melt naturally before attempting any mechanical water extraction.

Maintain the longevity of your pool infrastructure by scheduling regular cover maintenance before heavy winter storms arrive. Proper water management protects your pool investment, prevents structural damage, and ensures a smooth, effortless pool opening when swim season returns.