🌞 Opening your chlorine pool

Opening your pool with chlorine in spring: discover the essential steps for a simple and effective start-up. Cleaning, filtration, shock treatment, water analysis—all the advice for clear, safe, and well-balanced water from the first days of the season.

🌞 Ouverture de votre piscine au chlore

Spring marks the return of warmer weather... and the opening of your pool! To get off to a good start, it's essential to properly prepare your pool. Follow our comprehensive guide for a simple, safe, and effective chlorine pool opening.

🧼 Step 1: Remove the cover from your pool

The first step is to carefully remove the winter cover from your pool. Before removing it:

  • Use a submersible pump to remove standing water (in the case of a solid canvas)

  • Pick up visible leaves, debris and dirt

  • Carefully remove the cover to prevent debris from falling into the water

💡 Pro tip : Start filling the pool slightly during removal to make handling the liner easier.

Then clean the blanket, let it dry thoroughly, and store it in a dry place. This prolongs its lifespan and prevents mold.

🔧 Step 2: Prepare your pool

Before starting the filtration system and adding chlorine, here are the essential steps:

  1. Remove wintering accessories (gizmos, plugs, floats)

  2. Reconnect the equipment : pump, water return, skimmer

  3. Check the condition of the skimmer and replace parts as needed

  4. Install the return nozzles and point them downwards at 45°

  5. Lubricate the joints with a silicone-based product

  6. Reinstall the filter components (pressure gauge, glass bottle, etc.)

🔄 Step 3: Commissioning the filtration system

Here's how to restart it properly:

  1. Prime the pump by filling it with water, then start slowly

  2. Start in "Waste" or "Drain" mode to drain standing water

  3. Perform a rinse and backwash of the filter

  4. Switch to "Filtration" mode to ensure good circulation

  5. Check that there are no leaks and that the pressure is stable

  6. Physically clean the pool : brush the walls, vacuum up debris

💡 Good filtration from the start makes chemical balancing much more effective.

🧪 Step 4: Chlorine Start-up Treatment

Before adjusting the chemical parameters, it is important to disinfect the water :

✅ Use a chlorine pool opening kit to:

  • Eliminate algae, bacteria and winter impurities

  • Stabilize pH and prepare water to receive chlorine

  • Create a healthy environment for the entire season

🛑 Do not begin adding chlorine without the filtration running. Always follow the manufacturer's dosage instructions.

💧 Step 5: Water Analysis and Adjustment

Once the system has been running for at least 24 hours , take a water sample and have it analyzed at Piscines Geyser .

Ideal parameters for a chlorine pool:

  • pH : between 7.2 and 7.6

  • Free chlorine : 1 to 3 ppm

  • Total alkalinity : 80 to 120 ppm

  • Calcium hardness : 200 to 400 ppm

  • Stabilizer (cyanuric acid) : 30 to 50 ppm

🎯 Why is it crucial?
A good chemical balance prevents common problems such as cloudy water, algae, corrosion or scale, while extending the life of your equipment.

🧽 Recommended weekly maintenance for chlorine pools

To keep the water clear and safe all season long, here are the essential actions:

  • Test water weekly (chlorine, pH, alkalinity, stabilizer)

  • Adjust the settings according to the results

  • Monitor the filter and wash as needed (backwash)

  • Clean the pool: walls, bottom, skimmer basket

  • Check for debris and correct promptly

💡 Preventive maintenance saves you the costs of shock treatments or emergency repairs.

🛒 Recommended products for chlorine pools

At Piscines Geyser , we offer a complete range of products for chlorine-treated pools:

  • Granular, liquid or pebble chlorine

  • Stabilizer, pH adjusters, algaecides

  • Opening and maintenance kits

  • Water analysis tools and cleaning accessories

Discover certain products