Cleaning an old swimming pool requires a systematic approach to remove debris, address potential structural issues, and ensure the water is safe for swimming. Here's a step-by-step guide:
1. Remove Debris
Before doing anything else, remove any large debris from the pool. Use a leaf net or skimmer to scoop out leaves, branches, bugs, and other visible materials floating on the surface or settled at the bottom. This will make the subsequent steps much easier.
2. Drain the Pool
Draining the pool is crucial for a thorough cleaning.
- Rent or buy a submersible pump: This will expedite the draining process.
- Follow local regulations: Be mindful of local ordinances regarding where you can drain the pool water. Some areas require drainage into a sewer cleanout to avoid flooding or environmental contamination.
- Monitor the draining process: Keep an eye on the pool's structure as it empties. Older pools can be susceptible to cracking or shifting due to the pressure change. If you notice any concerning signs, halt the draining process and consult a pool professional.
3. Clear the Filter System & Check Equipment
While the pool is draining, take the opportunity to inspect and clean the filter system, pump, and other equipment.
- Clean the filter: Backwash or clean the filter according to the manufacturer's instructions. If it's a sand filter, consider replacing the sand if it's old or clogged.
- Inspect the pump: Check the pump for any signs of wear or damage. Clean out any debris from the pump basket.
- Examine other equipment: Inspect the skimmer, returns, and any other pool equipment for cracks or damage. Replace any worn or broken parts.
4. Scrub the Pool Clean
Once the pool is empty, it's time to scrub the surfaces.
- Choose the right cleaner: Use a pool-specific cleaner that is appropriate for your pool's surface (e.g., tile, plaster, vinyl liner). Avoid harsh chemicals that can damage the pool.
- Scrub thoroughly: Use a stiff brush to scrub the walls and floor of the pool. Pay particular attention to areas with algae growth or staining.
- Consider pressure washing (with caution): For heavily stained areas, a pressure washer can be used, but extreme caution is required. Keep the pressure low and avoid concentrating the spray on any one spot for too long, especially on older or delicate surfaces. Never use a pressure washer on a vinyl liner.
- Rinse thoroughly: After scrubbing, rinse the entire pool with fresh water to remove any remaining cleaner and debris.
5. Get It Professionally Inspected
Before refilling the pool, consider having a pool professional inspect it. They can identify any potential structural issues or equipment problems that may not be obvious. This is especially important for older pools.
6. Fill It Up, Test Your Water & Enjoy!
- Refill the pool: Once you're satisfied with the cleaning and any necessary repairs have been made, refill the pool with fresh water.
- Balance the water chemistry: After refilling, test the water and adjust the pH, alkalinity, calcium hardness, and sanitizer levels (chlorine or bromine) according to the manufacturer's instructions and recommended pool chemistry guidelines.
- Run the filter: Run the filter continuously for at least 24 hours to circulate the water and ensure proper filtration.
- Enjoy! Once the water is balanced and the filter is running, your old swimming pool should be clean and ready to enjoy.
