Winterizing Your Irrigation & Drainage Systems:

Winterizing Your Irrigation & Drainage Systems: What Landscapers Need to Know When temperatures drop, water becomes your system’s worst enemy. Frozen pipes, cracked valves, and broken sprinklers can lead to costly spring repairs. That’s why winterizing irrigation and drainage systems is one of the most critical fall maintenance tasks for any landscaper. Here’s how to do it right. 1. Shut Off the Water Supply Locate the main shut-off valve and close it tightly. For underground irrigation systems, make sure the water source to the sprinkler lines is completely sealed off. If you’re working on a commercial or multi-zone system, clearly label each valve for easy reactivation in spring. 2. Drain the Lines Thoroughly There are three common ways to drain irrigation lines: Manual drain: Open all end valves and let gravity do the work. Automatic drain: Many systems feature built-in valves that release pressure when flow stops. Blow-out method: Use an air compressor to remove all remaining water — the most reliable option in freezing climates. ⚠️ Safety Note: Never exceed 80 PSI when using compressed air to avoid damaging fittings or sprinkler heads. 3. Protect Valves, Backflow Preventers, and Controllers Use insulation covers or foam wrap on exposed valves and backflow devices. For controllers, remove batteries and store them indoors if possible. 4. Check and Clear Drainage Systems Clogged drains cause standing water that freezes and expands, damaging the surrounding soil and pipes. Inspect catch basins, French drains, and gutters — remove debris, leaves, and sediment buildup. 5. Test Before Freezing Temperatures Arrive Do a quick system test after draining to ensure there’s no water left in any zone. Once confirmed, leave valves partially open to relieve any remaining pressure. 6. Use the Right Supplies Stock up on: Valve insulation kits Blow-out adapters Drainage filters and grates Sealant tape Sprinkler caps and covers All of these are available at LawnMart, where professional landscapers get quality irrigation and drainage products at competitive prices. 7. Educate Clients If you maintain residential or commercial properties, leave your clients with a short “Winter Prep Checklist” — it builds trust and helps prevent emergency calls during the cold months. Final Thoughts Taking a few hours to properly winterize irrigation and drainage systems saves time, money, and stress in spring. Stay ahead of the freeze — and keep your equipment performing season after season. 💧 Shop professional-grade irrigation supplies at LawnMart.com today.