A step-by-step plan to open your pool for the season
Pool Name / Location:
Volume (US gal):
Dimensions (L x W x avg depth, ft):
Type (chlorine / saltwater):
Surface (inground / above-ground):
Date Started:
A calm, orderly opening sets up the whole summer. Uncover and reassemble first, get water moving, then balance from alkalinity up. Rushing the chemistry or skipping circulation is what turns an opening into a week-long green-water fight.
Chemical safety, every time
Never mix pool chemicals together, especially different chlorine types or chlorine and acid. Dangerous gas can form.
Always add chemical to water, never water to chemical. Pre-dissolve or broadcast per the product label.
Run the pump while you dose so the chemical circulates.
Wait, then retest before re-dosing. Add in steps rather than all at once.
Store chemicals separately, sealed, and away from kids and pets.
Spring Opening Checklist
Open early, before the water warms and algae gets a head start. Work top to bottom: uncover, reassemble, circulate, then balance. Expect a few days of running the pump nonstop to clear the water.
Before you remove the cover
Pump standing water and debris off the cover
Remove, clean, and dry the cover, then store it
Remove winter plugs and skimmer/return freeze guards
Reinstall drain plugs, baskets, ladders, and rails
Equipment start-up
Reconnect pump, filter, heater, and salt cell
Lubricate o-rings, check for cracks, reinstall return fittings
Top water up to mid-skimmer level
Prime and start the pump, check for leaks
Run the filter and circulate for 24 hours before testing
Balance the water
Test the full set: FC, CC, pH, TA, CYA, CH, and salt
Adjust TA first (60 to 120), then pH (7.2 to 7.8)
Bring CYA into range (30 to 50 chlorine, 60 to 80 salt)
Raise FC to the target for your CYA, shock if needed
Retest after circulating, fine-tune in steps
Clean and clear
Brush walls, steps, and floor
Skim, then vacuum debris to waste if heavy
Run the pump 24/7 until the water clears
Add a clarifier only if needed, per label
Notes
Parts replaced or ordered, opening test readings, how long the water took to clear, anything to fix before next season.
Handle the cover and chemicals carefully. Dosing and range figures are estimates from standard pool-care formulas and are not a substitute for testing your own water. Educational only. Always follow the product label and local guidance.