Picture this… the sun is shining, temperatures are rising and your family is eager to make a splash now that the weather has warmed up. But first, your in-ground pool needs some TLC after its winter slumber.
And for a proper inground pool opening, this means more than just filling it with fresh water.
Plus, this step is important—thorough pool dewinterizing creates the foundation for a safe, sparkling oasis your family will enjoy all summer long. Let’s walk through the essential steps to wake your pool from its winter hibernation and prepare it for months of splashing and new memories.
When Is the Best Time To Open an In-Ground Pool?
Here in Utah, the ideal time to open your pool is when daytime temperatures consistently reach 70°F, typically in late April or early May. Opening too early (when temperatures still regularly drop below freezing) might waste chemicals and energy, as you’ll be continually maintaining a pool you’re not using yet.
The sweet spot is to open your pool for summer about 2–3 weeks before you plan to start swimming regularly. This timing prevents algae buildup and gives you ample time to address any issues before the first cannonball of the season.
What Tools and Equipment Do I Need To Open my Pool?
Before diving in, gather these essentials:
- Garden hose
- Pool vacuum
- Water test kit
- Pool cover pump
- Basic hand tools
- Pool skimmer net
- Pool cover cleaner
- Soft broom or pool brush
- Pool filter cleaning supplies
- Pool opening chemical kit (including shock treatment, algaecide and pH adjusters)
Having everything ready beforehand makes the process more efficient and prevents last-minute hardware store runs.
Are There Safety Precautions I Should Take When Opening My Pool?
When opening your pool, always be sure to:
- Per the CDC, never mix pool chemicals, nor add them simultaneously
- Wear protective gear (goggles, gloves) when handling chemicals
- Turn off all electrical power to pool equipment before handling
- Have a second person present when removing heavy covers
- Ensure proper ventilation when working with pool chemicals
- Confirm no drain covers are loose, missing or broken
- Keep chemicals away from children and pets
How Do I Remove the Pool Cover?
Automatic
The process depends on your cover type. For automatic covers, run the cover back onto its reel, then use a pool cover pump and soft broom to clear any standing water or debris from the surface. Wipe it down with an appropriate cleaner before storing the reel housing for the season.
Manual
For manual covers, remove debris and standing water first, then carefully fold the cover as you pull it off to minimize debris falling into the pool. Clean thoroughly, allow it to dry completely, and store in a cool, dry place away from pests and sharp objects. For safety covers with springs or straps, loosen all anchoring devices and store them with the cover for next season.
What Steps Should I Take To Clean the Pool Surface?
Once uncovered, your pool surface will likely need the following:
- Remove large debris with a skimmer net
- Brush all surfaces thoroughly, paying special attention to corners and steps
- Address any algae in pool areas by scrubbing affected surfaces before chemical treatment
- Vacuum the pool bottom to remove settled debris
- For stain removal, know that organic stains and mineral stains each require different treatments.
When in doubt, bring a water sample to your pool supply store for a diagnosis before applying any product.
How Do I Clean the Pool Filter and Pump?
Proper filter maintenance ensures efficient filtration:
- Inspect all O-rings and gaskets for cracks or wear
- Clean or replace the filter according to manufacturer recommendations:
- Sand filters – Backwash thoroughly
- Cartridge filters – Remove and clean with filter cleaner
- DE filters – Backwash and add fresh DE powder
- Check for winter damage to pump baskets and impellers
- Reinstall all drain plugs removed during winterization
- Lubricate O-rings with pool lubricant if needed
What Chemicals Should I Use To Balance the Pool Water?
- Fill the pool to proper level (mid-skimmer)
- Test water for pH, alkalinity, calcium hardness and sanitizer levels
- Balance in this order:
- Total alkalinity (80–120 ppm)
- pH (7.2–7.6)
- Calcium hardness (200–400 ppm)
- Add pool shock treatment following package directions
- Run filtration system continuously for 24–48 hours
Cloudy water after shocking is fairly normal. Keep filtering and test again after 24 hours. If cloudiness persists, you may need a clarifier or more filtration time.
For stubborn algae problems, use a specialized algaecide and brush affected areas before shocking the pool. Remember that proper chemical balance is your best defense against future algae issues.
Step-by-Step Guide To Opening Your In-Ground Pool
Now that you have answers to your most pressing questions, here’s a basic breakdown of how to open your in-ground pool:
- Remove debris from pool cover and pump off standing water
- Carefully clean the pool cover, then store properly based on whether it’s automatic or manual
- Remove winterizing plugs and reinstall regular drain plugs
- Reconnect pool equipment (pump, filter, heater)
- Clean pool surface and remove debris
- Fill pool to proper level (mid-skimmer)
- Clean and inspect filter system
- Test and balance pool water chemistry (alkalinity, pH, calcium)
- Add shock treatment and algaecide
- Run filtration system for 24–48 hours
- Retest water and make final adjustments
- Clean pool deck and prepare pool furniture
Keeping your pool clean, balanced and ready for the season takes time, attention and the right approach. Many homeowners choose to handle the process themselves, while others prefer working with a trusted pool service professional to ensure everything is opened safely and running smoothly.
Either way, a properly opened pool sets the tone for the entire season—helping you avoid unnecessary repairs, protect your investment and enjoy more time in the water with family and friends.
And when the time comes to reimagine your backyard, upgrade your pool or start fresh with a new design, the team at Liquid Luxury Pools is here to help bring that vision to life with a custom pool built for how you live.
Contact us today for more information.
About the Author
&p[url]=https://www.liquidluxurypools.com/opening-an-in-ground-pool-your-complete-step-by-step-guide/&p[images[0]=https://www.liquidluxurypools.com/wp-content/uploads/guide.jpg){kind=link}
){kind=link}