Moen Flo Smart Water Monitor: Complete Installation Guide
The Moen Flo Smart Water Monitor and Shutoff is the most comprehensive whole-home water protection system on the market. This guide covers everything you need to know about the installation process, requirements, and what to expect when a professional team like WaterShield Pros installs the system in your home.
What Is the Moen Flo?
The Moen Flo is an intelligent device that installs directly on your main water supply line. It continuously monitors three critical parameters: water pressure, flow rate, and temperature. Using these measurements and its proprietary MicroLeak technology, it can detect leaks anywhere in your home — from a dripping faucet to a burst pipe — and automatically shut off your water supply when a catastrophic leak is detected.
Pre-Installation Requirements
Before installation, several factors need to be assessed to determine the right approach for your home.
Pipe Size: The Moen Flo comes in three sizes — 3/4 inch (Model 900-001), 1 inch (Model 900-006), and 1.25 inch (Model 900-002). Most residential homes use 3/4" or 1" main water lines. Our technician will verify your pipe diameter during the site assessment.
Power Source: The system requires a standard 120V AC power outlet within the reach of the included power cord (approximately 10 feet). If no outlet exists nearby, an electrician can install one during the same visit.
Wi-Fi Coverage: The Moen Flo connects to your home's 2.4 GHz Wi-Fi network. Strong signal at the installation point is essential for reliable app connectivity and alerts. A Wi-Fi extender may be recommended if your main water line is far from your router.
Installation Location: The device installs on the main water supply line after your water meter. Access to the main line is the primary factor affecting installation complexity and cost.
The Installation Process
Step 1 — Site Assessment (15-30 minutes): Our technician inspects your main water line, confirms pipe size, checks power availability, and tests Wi-Fi signal strength. We review the installation plan with you and confirm pricing.
Step 2 — Water Shutoff (5 minutes): We shut off your main water supply at the meter. We will coordinate timing to minimize disruption to your household.
Step 3 — Pipe Preparation (30-60 minutes): We cut into the main water line at the optimal location and prepare the pipe ends for the Moen Flo connections. This may involve soldering, using compression fittings, or installing adapters depending on your pipe material.
Step 4 — Device Installation (30-45 minutes): The Moen Flo unit is installed inline on the water supply. All connections are secured and tested for leaks under full pressure.
Step 5 — Electrical Connection (10-15 minutes): The device is connected to the power outlet and powered up.
Step 6 — App Setup & Calibration (15-20 minutes): We connect the system to your Wi-Fi, set up the Moen Smart Water app on your phone, and run the initial calibration. The system learns your home's normal water usage patterns during the first week.
Step 7 — Testing (15 minutes): We test the automatic shutoff function, verify app connectivity, and demonstrate how to use the system. We also run the first MicroLeak test.
Installation Cost Factors
Total installation cost typically ranges from $800 to $2,500. The main factors affecting price include the Moen Flo device itself ($499-$599), accessibility of your main water line, pipe material and diameter, distance from a power source, and whether additional plumbing modifications are needed.
After Installation
The Moen Flo begins monitoring immediately after installation. During the first week, the system learns your home's water usage patterns to establish a baseline. After that, it runs daily MicroLeak tests (typically at 2 AM) and provides continuous monitoring around the clock.
We recommend considering the optional FloProtect subscription, which extends your warranty to 5 years and adds up to $5,000 in insurance deductible coverage if a leak causes damage while the system is active.
Get Your Moen Flo Installed in 3 Easy Steps
Our guided process makes it simple — choose your device, share a few photos, and a local licensed plumber handles the rest.