Sprinkler System Guide: Installation, Zones & Maintenance

Sprinkler System Types
In-ground sprinkler system: Permanently installed underground pipes with pop-up sprinkler heads that rise when activated and retract when off. The most common residential system. Fully automated with a timer/controller. Typical components: controller (timer), valves, pipes (PVC or polyethylene), and sprinkler heads. Cost: $2,500-$5,000 for a typical yard (professionally installed). This is what most homeowners mean by a sprinkler system.
Drip irrigation: Low-volume system that delivers water directly to plant roots through emitters on tubing laid on or just below the soil surface. Uses 30-50% less water than sprinklers. Best for: flower beds, vegetable gardens, shrub borders, and trees. Not suitable for lawns (not enough coverage). Cost: $1-$3 per linear foot of tubing. Can be DIY installed as a weekend project.
Above-ground/portable: Hose-connected sprinklers (oscillating, impact, rotary). No installation required. Best for: small yards, renters, and supplemental watering. Cost: $10-$50 per sprinkler. Less efficient (more evaporation, less precise coverage).
System Design
Zones: A sprinkler system divides your yard into zones (circuits) — each zone is a group of sprinkler heads that run together. Zones are needed because most residential water supplies cannot run all sprinkler heads simultaneously (not enough water pressure/flow). Typical homes: 4-8 zones. Each zone covers 2,000-4,000 sq ft. Zone design factors: sun vs. shade (different watering needs), slope (avoid runoff), plant type (lawn vs. beds vs. trees), and soil type (clay absorbs slowly, sand drains fast).
Sprinkler head types: Pop-up spray heads: fixed spray pattern, cover 5-15 feet, best for small areas and beds. Rotor heads: rotating stream, cover 15-50 feet, best for larger lawn areas. MP rotator heads: multiple rotating streams, very efficient, cover 8-35 feet, the most water-efficient head type. Drip emitters: for beds and individual plants.
Water supply: Most residential systems connect to the main water supply with a backflow preventer (required by code to prevent irrigation water from contaminating drinking water). Flow rate: measure with a bucket and timer (typical: 8-15 GPM from a 3/4 inch supply line). This determines how many heads can run per zone.
Installation
Professional installation: 2-5 days for a typical yard. Includes: design, trenching (6-12 inches deep), laying pipe, installing heads, connecting to water supply, installing the controller, and programming. DIY installation is possible but labor-intensive (the trenching is the hardest part). DIY cost savings: 40-60%. Permit: check local requirements (some jurisdictions require a plumbing permit and backflow preventer inspection).
Maintenance
Spring startup: Turn on the system gradually (open the main valve slowly to avoid water hammer). Check each zone: look for broken heads, leaks, and misaligned spray patterns. Adjust heads as needed. Replace broken heads ($5-$15 each). Reprogram the controller for spring/summer watering schedule.
Mid-season: Adjust watering schedule as temperatures change. Check for dry spots and adjust heads. Replace clogged nozzles. Most lawns need 1 to 1.5 inches of water per week (including rainfall).
- Winterization (fall): In freeze-prone areas: blow out the system with compressed air to remove all water from pipes and heads. This prevents freeze damage (cracked pipes, broken heads). Professional blowout: $75-$
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- This is the single most important maintenance task — skipping it can cause thousands in damage.
Costs
Frequently Asked Questions
Lumberama Editorial Team
Landscaping & Irrigation Specialists
Contributor to Lumberama’s reference library. Read our editorial standards and source methodology.
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