How to Blow Out Pool Lines: A Comprehensive Guide
Properly blowing out your pool lines is crucial for protecting your plumbing system from damage during the off-season. Freezing temperatures can cause water to expand and crack pipes, leading to costly repairs. This guide will walk you through the process, answering common questions along the way.
What are Pool Lines?
Before we dive into the process, let's clarify what we mean by "pool lines." These are the pipes that circulate water throughout your pool system, including the main drain, skimmers, returns, and any other components like waterfalls or jets. Blowing out these lines removes the water, preventing potential freeze damage.
What equipment do I need to blow out pool lines?
You'll need a few essential pieces of equipment to effectively blow out your pool lines:
- Air compressor: This is the workhorse of the operation. You'll need a compressor capable of generating sufficient air pressure (typically around 40-60 PSI). A smaller compressor might struggle with larger lines or longer runs. Consult your pool's equipment manual for the recommended PSI.
- Air chuck (or blower plug): This is a special fitting that attaches to the compressor hose and seals the opening of your pool lines, allowing you to efficiently introduce compressed air.
- Compressor hose: A heavy-duty hose is recommended to withstand the pressure. Ensure it's long enough to reach all the necessary points of your pool's plumbing system.
- Pool line plugs: These plugs are designed to seal each line after you’ve removed water.
- Gloves and Safety Glasses: Always prioritize safety!
How do I prepare my pool for blowing out the lines?
Preparation is key to a successful blow-out. Ensure you follow these steps:
- Lower the water level: Reduce the water level in your pool to several inches below the skimmer. This leaves enough water for the blow-out process and prevents air from getting sucked into the pump.
- Turn off all equipment: Switch off your pump, filter, heater, and any other components.
- Check valves: Ensure all valves are closed, preventing air from escaping into your pool.
Step-by-step instructions on how to blow out pool lines:
- Connect the air chuck: Attach the air chuck to the compressor hose.
- Locate the blow-out points: Most pool systems have designated blow-out plugs on the equipment pad or near the plumbing. These plugs are easily removed and allow you to introduce the compressed air. If you’re unsure where the blow-out plugs are located, consult your pool’s manual.
- Securely attach the air chuck: Remove the chosen plug and securely attach the air chuck to the opening.
- Turn on the air compressor: Gradually increase the pressure to the recommended PSI for your pool's system. Always monitor the pressure gauge.
- Listen for air: You should hear air escaping from other lines or fittings. If not, check all valves, plugs, and connections for leaks.
- Repeat for all lines: Repeat steps 3-5 for each line that needs to be blown out, typically returns, skimmers and main drain.
- Seal the lines: Once you've blown out all the water, replace the plugs. This prevents debris from entering the lines.
What if I have a multi-zone pool system?
Multi-zone systems require a more methodical approach. You might need to isolate individual zones to blow them out one by one. It's advisable to consult a professional pool service technician to ensure the process is carried out safely and correctly.
What are the signs of a properly blown-out pool line?
A properly blown-out pool line will be completely free of water. You will hear air consistently escaping from other openings, indicating a successful air purge.
What happens if I don't blow out my pool lines?
Failing to blow out your pool lines during freezing weather can result in cracked pipes, leading to costly repairs or a complete system replacement. The expansion of freezing water within the pipes exerts significant pressure that exceeds the structural integrity of PVC pipes.
Should I hire a professional to blow out my pool lines?
While many homeowners successfully blow out their lines themselves, hiring a professional pool service technician is always an option. They have the experience and equipment to handle any complications. It's particularly advisable for more complex systems or if you're not comfortable working with air compressors.
By following these steps and taking necessary precautions, you can effectively blow out your pool lines and protect your valuable investment from winter's harsh conditions. Remember, safety should always be your top priority. If you're unsure about any part of this process, consult a pool professional.
