Seasonal

Pool Opening Checklist for Service Professionals (Spring 2026)

The complete pool opening checklist for professional pool service technicians. Step-by-step procedure from cover removal through water balance, equipment startup, and customer handoff.

PoolOps Team··7 min read

Before You Arrive

  • Confirm appointment with customer
  • Review last season's closing notes (chemistry, equipment issues, repairs needed)
  • Load truck: test kit, chemicals, vacuum, brush, cover pump, winterizing plugs bag

Phase 1: Cover Removal

  1. Pump standing water off the cover
  2. Remove cover anchors or water bags
  3. Remove cover carefully — minimize debris falling in the pool
  4. Clean and fold cover, or recommend replacement if damaged
  5. Store cover in a dry location (advise customer)

Phase 2: Water Level & Inspection

  1. Fill pool to mid-skimmer level with garden hose
  2. While filling, inspect the pool:

- Cracks in plaster or coping

- Tile damage or missing grout

- Staining on surfaces

- Debris on bottom (note for vacuuming)

  1. Remove winterizing plugs from returns, skimmer, and drain
  2. Reinstall drain plugs on pump, filter, heater, chlorinator

Phase 3: Equipment Startup

Pump

  1. Ensure drain plugs are installed
  2. Open suction and return valves
  3. Prime the pump (fill strainer basket with water)
  4. Start pump and verify prime
  5. Check for leaks at all connections
  6. Listen for unusual sounds

Filter

  1. Inspect filter pressure gauge (replace if damaged)
  2. Note clean starting pressure (baseline)
  3. Sand: Backwash for 2 minutes, then rinse for 30 seconds
  4. DE: Add fresh DE through skimmer after priming
  5. Cartridge: Inspect and clean or replace if needed

Heater

  1. Remove any critter nests from burner area
  2. Open gas valve
  3. Turn on and verify ignition
  4. Check for error codes
  5. Run for 15 minutes and check for leaks

Salt Cell (if applicable)

  1. Inspect cell for calcium buildup
  2. Clean if necessary (acid wash)
  3. Reinstall and verify output reading
  4. Set to appropriate output level

Automation/Timer

  1. Set pump run time (8–12 hours daily)
  2. Set heater schedule if applicable
  3. Check automation controls and remote
  4. Verify all valves actuate correctly

Phase 4: Water Chemistry

This is the most critical phase. Spring water is usually a mess.

Test Everything

  • Free chlorine
  • pH
  • Total alkalinity
  • Calcium hardness
  • CYA (stabilizer)
  • Salt (if applicable)
  • Metals (iron, copper) — especially if water is discolored

Balance in This Order

  1. Alkalinity first — Adjust to 80–100 ppm
  2. pH second — Adjust to 7.4–7.6
  3. Calcium third — Adjust to 200–400 ppm
  4. CYA fourth — Add stabilizer if below 30 ppm
  5. Shock last — Double the normal shock dose for opening

Opening Shock Dose

Add 2x your normal weekly shock dose. For a 20,000 gallon pool, that's approximately 4 gallons of liquid chlorine.

Run the pump continuously for the first 48 hours.

Phase 5: Cleaning

  1. Skim all surface debris
  2. Brush all surfaces thoroughly
  3. Vacuum to waste (bypass filter — opening debris is heavy)
  4. Clean tile line if needed
  5. Empty all baskets

Phase 6: Customer Handoff

  1. Walk the customer through what you did
  2. Note any repairs or equipment replacements needed
  3. Set expectations: water may be cloudy for 24–48 hours
  4. Confirm weekly service schedule
  5. Send a service report with all readings

Document Everything

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