Owning a pool is a luxury and a long-term investment, but it also comes with responsibilities. If you have a newly plastered pool, ensuring proper maintenance during the closing process is critical. Without the right steps, your pool plaster can crack, discolour, or fail to cure properly, leading to costly repairs. In this detailed guide, we’ll cover everything pool owners need to know about closing a newly plastered pool, ensuring its longevity and optimal performance for years to come.
Why Closing a Newly Plastered Pool Is Important
Understanding the Fragility of New Plaster
Newly applied plaster is particularly delicate. For the first few weeks after application, the plaster undergoes a curing process. During this time, it hardens and bonds to the pool’s structure, forming a smooth and durable surface. If this process is disrupted, the plaster’s quality and durability may be compromised.
Protecting Your Investment
Your pool’s plaster serves as a protective layer, shielding the underlying structure from damage. Closing the pool improperly, especially during this critical curing phase, can lead to issues like calcium scaling, staining, or etching. These problems not only affect the pool’s appearance but can also reduce its lifespan, turning a small oversight into a significant expense.
What Happens During the Plaster Curing Process?
Chemical Reactions in Fresh Plaster
When plaster is applied, a chemical reaction occurs between the cement and water, known as hydration. This process causes the plaster to harden and creates a durable surface resistant to water and wear. However, it doesn’t happen overnight. Curing can take anywhere from 28 to 60 days, depending on environmental factors like temperature and humidity.
Why the Cure Time Matters
During the curing phase, it’s essential to maintain proper water chemistry and ensure that the pool remains clean and filled with water. Exposing the plaster to air or allowing debris to settle can cause premature cracking or discoloration, undermining the plaster’s integrity.
Considerations for Pre-Closing a Newly Plastered Pool
When Should You Close Your Pool?
Timing is everything when closing a newly plastered pool. Ideally, you should wait until the curing process is complete. For most pools, this means waiting a minimum of four weeks after plastering. However, in cooler climates, it might take longer due to slower curing rates.
Assess Your Pool’s Environment
Before closing your pool, take stock of its surroundings:
- Climate: Freezing temperatures require extra precautions to prevent damage to plaster and equipment.
- Tree Coverage: Falling leaves and debris can stain new plaster if not cleaned promptly.
- Water Quality: Ensure the water is balanced and free from impurities to avoid plaster discoloration.
Step-by-Step Guide to Closing a Newly Plastered Pool
Perform a Thorough Cleaning
A newly plastered pool is more susceptible to staining, so it’s crucial to remove debris and contaminants:
- Use a soft-bristle brush to gently scrub the walls and floor, avoiding scratches.
- Vacuum the pool to remove fine particles that could settle on the plaster.
- Skim the surface for leaves and other debris.
Balance the Water Chemistry
Balancing water chemistry is the cornerstone of pool maintenance, especially for new plaster. Use a reliable test kit to measure:
- pH Levels: Keep pH between 7.4 and 7.6 to prevent scaling or etching.
- Alkalinity: Maintain levels between 80 and 120 ppm for stability.
- Calcium Hardness: Ensure levels are between 200 and 400 ppm to avoid calcium deposits on the plaster.
- Chlorine: Keep chlorine levels between 1 and 3 ppm for sanitation without over-chlorinating.
Lower the Water Level
Lower the water level to prevent overflow or damage during winter. Generally, the water should sit 4–6 inches below the skimmer. Avoid lowering the level too much, as exposing fresh plaster to air can cause cracks or drying issues.
Winterize Pool Equipment
Protect your pool equipment by following these steps:
- Drain the pool pump, filter, and heater to prevent freezing damage.
- Remove and store accessories like ladders and pool cleaners.
- Add pool-safe antifreeze to plumbing lines for extra protection in freezing climates.
Step 5: Apply a Secure Pool Cover
A high-quality, weather-resistant pool cover is essential for protecting your newly plastered pool. Ensure the cover fits snugly and is free from holes or tears. This will shield your pool from debris, UV damage, and weather-related wear.
Common Mistakes to Avoid
Skipping the Cleaning Step
Neglecting to clean the pool before closing can lead to stains and algae growth, particularly on new plaster.
Improper Water Chemistry
Failing to balance the water chemistry can result in issues like calcium scaling, which is difficult to remove from fresh plaster.
Using the Wrong Pool Cover
A flimsy or ill-fitting cover can allow debris and sunlight into the pool, which can harm the curing plaster and promote algae growth.
Expert Tips for Long-Term Plaster Care
Monitor Chemistry Year-Round
Even after closing, check your pool’s water chemistry periodically. This ensures the plaster remains in good condition and prevents issues when reopening.
Invest in Professional Maintenance
For the best results, consider hiring a pool professional to assist with the closing and reopening processes, especially for newly plastered pools.
Use Pool-Friendly Cleaning Tools
Avoid abrasive tools that could scratch or damage the plaster. Stick to soft brushes and gentle cleaners.
When to Reopen Your Newly Plastered Pool
Signs That Your Pool Is Ready
Reopening your pool after winter requires careful inspection. Look for:
- Clear Water: Ensure there are no visible contaminants or discoloration.
- Stable Chemistry: Test the water and balance the chemicals as needed.
- Intact Plaster: Check for cracks, chips, or other signs of damage.
The Best Time to Reopen
Aim to reopen your pool when the outdoor temperature consistently stays above 60°F. This reduces the risk of freezing and allows for comfortable swimming conditions.
Conclusion
Closing a newly plastered pool might seem like a complex task, but with the right knowledge and steps, it’s entirely manageable. By prioritising water chemistry, protecting the plaster during curing, and avoiding common mistakes, you can ensure your pool remains in excellent condition for years to come. Remember, the effort you put into properly closing your pool today will save you time, money, and stress in the future.
FAQs
- How long does new pool plaster take to cure fully?
New plaster typically takes 28–60 days to cure fully, depending on the climate and plaster type. - Can I use my pool while the plaster is curing?
Yes, but only after the water chemistry is balanced and the plaster has had at least 48–72 hours to set. - What should I do if my plaster starts to crack during curing?
Contact a professional immediately to assess the damage and recommend repairs. - Is it safe to cover my pool immediately after plastering?
Yes, but ensure the cover doesn’t trap debris or chemicals that could stain the fresh plaster. - How can I prevent stains on new plaster?
Regularly clean your pool and balance the water chemistry to avoid mineral deposits and algae growth.
About The Author
