Water Buddi — Field Installation Guide

Before You Begin

Gather the following tools and materials before starting the installation.

Tools needed

• Trenching spade or power trencher
• Wire strippers and crimping tool
• Drill and bits (for valve box lid)
• Screwdrivers (flathead and Phillips)
• Measuring tape
• Pipe wrench or adjustable wrench

Materials needed

• Water Buddi device(s) — one per irrigation zone
• Transformer — 300 W, 24 VAC or 12 VAC (sold by Telemetry Insights or customer-supplied)
• Landscape cable — 14–16 AWG multi-conductor (sold by Telemetry Insights)
• Splice connectors — one per device tap point (sold by Telemetry Insights)
• Underground valve boxes — one per device location
• Irrigation solenoid valves — 24 VAC standard or 12 VDC latching
• Drip irrigation tubing, emitters, or sprinkler heads for each zone

Power System Overview

Each Water Buddi device draws power from a single landscape cable run that extends from the transformer along the property, passing through each irrigation zone. Each device taps power from the cable at its installed location using a splice connector.

Power options

Wiring

• Cable type: 14–16 AWG landscape wire, multi-conductor
• Route: One cable run from transformer through all irrigation zone locations
• Tap method: Splice connector at each device location — no return runs needed

Run a single cable from the transformer through each irrigation zone, passing through or near each planned device location.

1. Plan your device locations — typically one Water Buddi per irrigation zone or garden bed.
2. Trench from the transformer to each zone at a depth of at least 6 inches (15 cm) to protect the cable from garden tools and cultivation.
3. Lay the landscape cable continuously from the transformer through each device location. One continuous cable feeds all devices on the run — do not cut individual runs back to the transformer.
4. Leave a service loop of extra cable (about 12 inches / 30 cm) at each device location for splicing.
5. Leave the trench open until all device installations are complete and tested.

Each device installs inside an underground valve box at the edge of its irrigation zone. The device mounts to the inside of the valve box lid and is accessible from the surface.

1. Dig a hole at each device location sized to fit the valve box, with the top of the box flush with or slightly above ground level.
2. Position the valve box at the edge of the garden bed or irrigation zone — close enough to route the soil sensor cable into the root zone without excess slack.
3. Route the landscape cable service loop into the valve box.

The solenoid valve controls water flow to the irrigation zone. It installs inside the valve box on the irrigation supply line.

1. Connect the upstream supply pipe to the solenoid inlet.
2. Connect the solenoid outlet to the zone pipe that feeds the drip emitters or sprinklers in the garden bed.
3. Route the solenoid's two wire leads into the valve box — these connect to the device.

For Water Buddi, the sensor should measure moisture in the active root zone — the depth where your vegetables or plants draw water from. Placing it too shallow picks up surface evaporation rather than actual root-zone conditions. Placing it too deep misses the zone plants are actively pulling from.

Recommended sensor depth — Water Buddi

Placement within the zone

Place the sensor in the center of the irrigated area, away from the edge of the bed and not directly under a drip emitter (which would give a falsely high reading right after watering). The goal is to measure the average moisture condition of the root zone, not the moisture immediately at the emitter.

1. Insert the RS-485 Modbus soil sensor probe vertically into the garden bed at the recommended depth for your crop type.
2. Position the probe in the center of the zone — roughly equidistant from the nearest drip emitters.
3. Route the sensor cable to the valve box and leave enough length to reach the device connector (Side B).
4. Backfill around the probe and tamp lightly to ensure good soil contact. Avoid air gaps around the probe body.

The device mounts to the inside of the valve box lid using standoffs, keeping it accessible from the surface without disturbing the garden bed.

1. Using the included mounting template, mark and drill the standoff holes in the valve box lid.
2. Attach the device dock to the lid using the stainless machine screws, threaded spacers, and rubber gaskets included in the box.
3. Connect Side A of the device:
   • 2-wire power from the landscape cable splice connector
   • 2-wire solenoid leads
4. Connect Side B of the device:
   • 4-wire soil sensor connector
5. Dock the device into the mount and secure with the knurled thumb screw at the top tab.
6. Splice the landscape cable power tap at this device location using a splice connector. Connect the splice output to the device Side A power leads.

Once all devices on the run are installed and wired, restore power at the transformer and verify each device comes online.

1. Turn on the transformer.
2. Each device LCD should power on and cycle through startup. After connecting to WiFi and the cloud, the screen cycles live sensor readings — confirming soil moisture, temperature, humidity, and pressure data.
3. Open the Telemetry Insights app and verify each device appears as online with live telemetry.
4. Check that soil moisture readings are in a reasonable range for your current soil conditions — for most garden soils this is 30–70% after a recent watering. Dry soil before watering will typically read below 30%.
5. Backfill the trench and replace mulch or ground cover.

Products Available from Telemetry Insights

Everything needed for a complete Water Buddi installation is available directly from Telemetry Insights. Using matched components ensures compatibility and simplifies support.

• Transformer — 300 W, dual-voltage 24/12 VAC output
• Landscape cable — 14–16 AWG multi-conductor, UV-rated
• Splice connectors — waterproof, direct-bury rated
• Startup bundle — transformer + cable + connectors in one order