Protecting your sprinkler system from winter damage is crucial for its longevity and efficient performance in the spring. Freezing water expands, causing pipes to burst and leading to costly repairs. This comprehensive guide details how to effectively drain your sprinkler system, ensuring its survival through freezing temperatures. Understanding your system type is the first step towards successful draining.
Identifying Your Sprinkler System Type
Before you begin, it's essential to understand the type of sprinkler system you have. There are generally two main types:
1. In-Ground Sprinkler Systems:
These systems are permanently installed underground and require a more thorough draining process. They often utilize backflow preventers, which are vital components requiring specific attention.
2. Above-Ground Sprinkler Systems:
These systems are typically more straightforward to drain, as the pipes and components are easily accessible. However, proper draining is still essential to prevent damage.
Step-by-Step Guide to Draining Your Sprinkler System
The exact steps will vary slightly depending on your system's specifics, but the general process remains consistent.
1. Turn Off the Water Supply:
This is the most crucial first step. Locate your main water shut-off valve for the sprinkler system and turn it completely off. This is usually a separate valve from your home's main water supply.
2. Locate and Open Drain Valves:
Many in-ground sprinkler systems have dedicated drain valves. These valves are typically located at the lowest points of the system, often near the backflow preventer. Open these valves to allow water to drain from the pipes. Some systems may require you to manually open drain plugs on individual sprinkler heads.
3. Check Your Backflow Preventer:
Backflow preventers are essential for preventing contaminated water from flowing back into your drinking water supply. Many backflow preventers have a drain valve; consult your system's manual or contact a professional if you are unsure how to drain it properly. Improper handling of a backflow preventer could lead to system failure.
4. Run Your Sprinkler System (briefly):
After opening the drain valves, briefly run your sprinkler system for a short period (around 15-30 seconds). This helps push any remaining water out of the pipes and towards the drain valves.
5. Check for Remaining Water:
After running the system, inspect the sprinkler heads and pipes for any remaining water. If you notice any, repeat steps 2-4 as needed.
6. Blow Out the Lines (Optional, but Recommended for In-Ground Systems):
For in-ground systems, using an air compressor to blow out the remaining water is highly recommended. This ensures all water is removed, preventing freezing. Be cautious when using an air compressor; excessive pressure can damage your system. If you're not comfortable with this step, contact a professional.
7. Disconnect and Store Above-Ground Components (if applicable):
If you have an above-ground system with detachable components, disconnect them and store them indoors in a frost-free location.
Winterizing Your Sprinkler System: Beyond Draining
Draining is a crucial step, but there are additional measures to further protect your system:
- Insulation: Covering exposed pipes with insulation can provide an extra layer of protection against freezing temperatures.
- Professional Winterization: For complex systems or if you're uncomfortable performing the steps yourself, consider hiring a professional irrigation specialist. They have the expertise and tools to winterize your system correctly.
By following these steps, you can significantly reduce the risk of damage to your sprinkler system during the winter months and ensure it’s ready to function optimally come spring. Remember, prevention is key – taking these steps now saves you potential headaches and expenses down the line.
