Why Drain Your Pool in November?
Draining your pool in November is often necessary for winterization, structural repairs, or major water quality issues that cannot be resolved with chemicals alone. Cooler temperatures and lower water tables during fall reduce the risk of hydrostatic pressure damage, making November a safer time for this maintenance task.
Key Benefits of Proper Pool Draining
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Prevents Freeze Damage: Lowering the water level protects your pool’s structure and plumbing from ice expansion.
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Protects Equipment: Reduces risk to skimmers, return lines, and filtration systems.
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Simplifies Spring Opening: A well-drained pool is easier to clean and prepare for the next season.
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Reduces Algae Growth: Less water means less sunlight exposure, minimizing algae risk.
When Should You Drain Your Pool?
Only drain your pool if:
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You need to perform structural repairs.
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Water quality is beyond chemical correction.
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Major renovations or resurfacing are scheduled.
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You need a significant chemical dilution.
Never fully drain fiberglass or vinyl liner pools—partial draining is safer and recommended.
How to Drain Your Pool Safely
1. Preparation
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Clean the Pool: Brush walls, vacuum, and skim debris.
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Test and Balance Water Chemistry: Adjust pH, alkalinity, and chlorine to prevent staining and equipment damage.
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Remove Accessories: Take out ladders, rails, skimmer baskets, and store them safely.
2. Choose the Right Method
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Filter System – Best for Partial Draining
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Set the filter to “Waste” or “Backwash.”
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Position the backwash hose so water drains to a safe, approved area.
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Submersible Pump – Best for Significant Water Removal
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Place the pump at the pool’s deepest point.
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Attach a hose and direct the discharged water away from the pool.
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Never drain after heavy rain or during high groundwater conditions to avoid pool “popping” or structural damage.
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Open hydrostatic relief valves to release groundwater pressure if draining most or all water.
3. Safety Precautions
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Wear non-slip shoes, gloves, and goggles.
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Use anti-entrapment drain covers to prevent suction hazards.
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Monitor water level closely and stop draining once below the skimmer or return jets.
4. Final Steps
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Blow out water lines using an air compressor or shop vac; plug lines with expansion plugs or gizmos.
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Cover your pool with a winter cover to protect it from debris and sunlight.
Environmental & Regulatory Considerations
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Check local regulations for water discharge requirements.
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Direct drained water away from your home and pool area, ideally downhill, to prevent soil instability and property damage.
Pro Tip: Hot Tub Winterization
If you own a hot tub, consider using a frog mineral cartridge hot tub system to maintain water quality during winter. These cartridges help reduce chemical use and keep your hot tub fresh, making spring reopening easier and safer.
Consult a Professional
If you’re unsure about your pool’s structure, water table, or drainage needs, consult a certified pool professional. Proper assessment and CPO® training can prevent costly damage and ensure compliance with safety and environmental standards.
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