DIY 101: How to Drain a Pool Like a Pro
Jan 19, 2025 | By HappyTask Blog Team
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Draining your pool is sometimes necessary for maintenance, repairs, or addressing severe water quality issues. However, improper draining can damage your pool or even cause environmental problems. With this guide, you’ll learn how to drain a pool safely, what tools are required, and when to call in a professional.
When Should You Consider Draining Your Pool?
Draining pool water is not something you need to do often, but certain situations require it. Here’s when you should consider it:
Excessive Contaminants:
- If your pool has high levels of stabilizers, calcium, or total dissolved solids (TDS) that can’t be corrected with chemicals.
- Persistent algae problems that resist regular treatment.
Repairs or Renovations:
- Draining is necessary for resurfacing, tile replacement, or fixing cracks in the pool structure.
- For some above-ground pools, draining pool water may be required to prepare for winter.
Overfilled Pool:
- After heavy rains, the pool water level might rise too high, requiring draining to maintain the proper level.
How Often Should You Drain Your Pool?
- For in-ground pools, a complete drain every 3–5 years is typical.
- Above-ground pools may need draining annually, depending on use and maintenance.
What Prep Work Are Needed Before Draining Your Pool?
Proper preparation is key to ensuring a smooth draining process. Follow these steps before you begin:
Check Local Regulations:
- Some areas have rules about where pool water can be drained (e.g., into storm drains, sewers, or onto your property).
Turn Off Pool Equipment:
- Protect your pump and filter by shutting them off before draining.
Test the Groundwater Level:
- For in-ground pools, high groundwater can cause the pool to “pop” out of the ground when empty. Test the groundwater levels or consult a professional.
Assemble Your Tools:
- Submersible Pump to Drain Pool: A reliable and efficient way to drain water from your pool.
- Garden Hose Siphon: A simple alternative for smaller pools.
- Drain Hose: To direct the water away from your property.
- Protective Gear: Gloves and boots for safety.
Photo by 何 夏
How to Drain a Pool: Techniques for In-Ground and Above-Ground Pools
How to Drain an In-Ground Pool
Turn Off the Pool Pump:
- To avoid damaging your equipment, turn off the pump before draining.
- If the water level drops below the skimmer opening while the pump is running, it could pull air into the suction line, leading to damage.
Set Up a Submersible Pump:
- Use a submersible pump to drain the pool safely and efficiently.
- Connect one end of a garden hose to the pump and place the other end in a suitable drainage area (complying with local regulations).
Submerge the Pump:
- Place the pump at the deepest point of the pool, ensuring it is fully submerged and resting at the bottom.
- Turn on the pump to start draining.
Monitor the Process:
- Keep an eye on the pump to ensure it’s functioning correctly and the hose is draining water effectively.
- Avoid letting the pool drain completely unless necessary for repairs.
Stop the Pump:
- Once the water reaches the desired level (e.g., a few inches below the skimmer), turn off the pump and remove it from the pool.
How to Drain an Above-Ground Pool
Use a Siphon for Smaller Pools:
- Insert a garden hose into the pool, ensuring it fills with water.
- Cover one end with your thumb, pull it out of the pool, and place it downhill to create a siphon effect.
Drain Using a Submersible Pump (Best Method):
- Connect one end of a garden hose to the submersible pump and position the other end in your drainage area.
- Submerge the pump fully at the bottom of the pool and turn on the power.
- Allow the pump to do the work until the desired water level is achieved.
Remove Remaining Water:
- When the water level is too low for the pump, carefully tilt the liner or use a wet-dry vacuum to remove the last bit of water.
Additional Safety Tip for Both Pool Types
- Always monitor the process closely to prevent over-draining or equipment damage.
- If you’re unsure about your drainage setup, consult a professional to avoid potential risks to your pool or surrounding property.
Photo by Arthur Shuraev
When to Hire a Professional to Drain Your Pool
Draining a pool can sometimes be risky, especially for in-ground pools. Here’s when it’s better to hire a professional:
High Groundwater Levels:
- Professionals can test and manage groundwater pressure to prevent a pool “pop-out.”
Complicated Systems:
- Pools with attached spas, heaters, or advanced filtration systems need expert care during draining.
Extensive Repairs or Renovations:
- Draining for resurfacing or structural repairs is best handled by specialists.
Cost of Professional Pool Draining
- Average Cost: $150–$500, depending on the pool size and complexity.
- Additional Services: Some pool professionals offer cleaning, inspection, or refilling as part of the package.
FAQs
1. How to drain a pool using a pump?
Place a submersible pump at the deepest point, attach a drain hose, and direct water to an appropriate drainage area.
2. Can I drain my pool without a pump?
Yes, you can use a siphon with a garden hose, but it’s slower and less efficient than a pump.
3. How much does it cost to drain a pool?
DIY costs are minimal if you own a pump. Hiring a professional ranges from $150 to $500.
4. How long does it take to drain a pool?
- A submersible pump can drain a standard pool in 6–12 hours.
- Siphoning or smaller pumps may take longer.
5. Is it safe to drain my pool completely?
Draining completely is risky for in-ground pools due to groundwater pressure. Partial draining is safer unless necessary for repairs.
Conclusion
Draining your pool is a manageable task with the right tools and preparation. Whether you’re dealing with algae, performing repairs, or lowering the water level after heavy rain, this guide ensures you can drain your pool safely and effectively. For complex situations, don’t hesitate to call a professional to protect your investment.
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