Laying out zones, head types and run times for a small residential job takes time before you can quote or brief a crew. Short answer: use Claude (organizes zone, plant and site info into a draft plan you verify). Free option: ChatGPT. The workflow has 6 steps and 2 copy-paste prompt(s); expect expect a draft table of zones (e.g., "Zone 1 – front lawn – rotors", "Zone 2 – shrub beds – drip"), a rough zone count, and a list of assumptions and questions. Treat it as a starting sketch, not a stamped design. Main caution: AI does not know your actual water pressure, flow, soil or slope. Measure them; never rely on guessed numbers.
The problem
Laying out zones, head types and run times for a small residential job takes time before you can quote or brief a crew.
Recommended tools
ClaudeOrganizes zone, plant and site info into a draft plan you verify.
Free; Pro $20/mo ($17/mo annual); Max from $100/mo
ChatGPTFree plan handles the same prompts.
Free; paid plans per user - see https://chatgpt.com/pricingEditorial opinion based on the vendor capabilities and prices listed in our tools directory. Not paid placements; prices as checked Oct 2026 and may change. Compare all use cases →
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Step-by-step workflow
- Measure the site (or pull measurements from an aerial measuring tool) and sketch planting areas, lawn, hardscape and the water source location.
- Measure static water pressure and flow (GPM) at the point of connection yourself; note meter and supply line size.
- Paste the site details into the prompt below and ask for a zone layout draft.
- Ask follow-up questions: grouping by hydrozone, drip vs. spray per area, controller programming ideas.
- Check every number against manufacturer charts for the actual heads/emitters you will install, then revise.
- Have a licensed contractor or certified irrigation designer review where your jurisdiction requires it, and pull any required permits/backflow approvals.
Copy-paste prompts
You are helping a landscape contractor draft a residential irrigation plan. Site: [describe areas with approx. square footage, sun/shade, slope, plant types]. Water source: [meter size], static pressure [X psi measured], available flow [X GPM measured]. Location: [city/region]. Please: 1) group areas into hydrozones, 2) suggest drip vs. spray/rotor per zone, 3) estimate number of zones that fit within the measured flow, 4) list assumptions and anything I must verify on site. Do not invent pressure or flow values; ask me if something is missing.
Turn this zone plan into a simple materials checklist (valves, controller, backflow device, drip components, heads) with quantities marked as estimates for me to verify: [paste plan].
What to expect
Expect a draft table of zones (e.g., "Zone 1 – front lawn – rotors", "Zone 2 – shrub beds – drip"), a rough zone count, and a list of assumptions and questions. Treat it as a starting sketch, not a stamped design.
Limits & safety
- AI does not know your actual water pressure, flow, soil or slope. Measure them; never rely on guessed numbers.
- Follow local codes, backflow prevention requirements and water-agency rules; requirements vary by city and county.
- Use a licensed contractor or qualified designer where your state or jurisdiction requires one.
- Verify head spacing, precipitation rates and pipe sizing with manufacturer specifications.