Does the Flo by Moen Good Water Monitor and Shutoff dwell as much as its sensible water moniker? That’s what we lately got down to do by putting in the most recent model of the Flo by Moen shutoff system in our Digitized Home Overview sensible residence. The gadget not solely screens and categorizes water utilization all through the house to assist promote water conservation, however extra importantly gives realtime leak detection and computerized primary waterline shutoff within the occasion of a serious leak occasion. Learn on to get our in-depth evaluation.
Overview Abstract
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Purchase Now: From Moen ($475-760)
Purchase Now: From Amazon (399-$560)
The Good Water Monitoring and Automated Shutoff Panorama
Flo by Moen has been out there for a number of years, and competes with comparable whole-home water monitoring and automatic shutoff merchandise provided by Phyn, Kohler, and others. The Phyn Plus Good Water Assistant + Shutoff (2nd gen) and Kohler H2Wise+ in all probability most carefully align with Flo by Moen with respect to options, capabilities, utilization mannequin, and value vary. The Phyn and Kohler choices, by the best way, are primarily the identical product (see our detailed evaluation on the Kohler H2Wise+), although the Kohler-branded model brings some further intelligence when used with Kohler-branded plumbing fixtures.
What are you able to count on with this style of sensible water units? First, since they set up on the principle water line coming into the house, you may count on to get water utilization and historical past by fixture kind for units related upstream of the monitor, in addition to water stress monitoring. Secondly, you may count on automated day by day well being checks of your plumbing system (or water community, as we prefer to discuss with it) to detect for failing parts or microleaks. Thirdly, because of the built-in shutoff mechanism, they’ll routinely flip off the water primary within the occasion of a catastrophic leak to forestall or reduce water harm to the construction. And lastly, you may count on wherever, anytime app entry to test on water utilization, evaluation alerts and notifications, and to remotely swap off your water primary with the swipe of a finger.
As regards to fixture kind, the central sensible sensors in these screens are designed to make use of algorithms and AI to find plumbing fixtures after which place them into significant gadget teams or classes for reporting. So, whereas they fight their greatest to accurately establish these units, don’t count on them to be completely good on this regard.
Learn on to find how the Flo by Moen product does on these expectations.
Flo by Moen Overview: Out of the Field
Moen gives the Flo system in 3 completely different mainline sizes, together with 3/4 in., 1 in., and 1.25-in, differentiating itself from the Phyn and Kohler merchandise which might be solely obtainable in a 1-in. measurement. Typically, you’ll want to choose a measurement that’s the identical or bigger than your mainline in order to not impede water circulation or trigger diminished stress. Steered retail value for Flo vary from $499 to $799 relying on the mainline measurement, however you may count on some stage of low cost instantly from Moen, Amazon, and different on-line retailers.
Within the case of Flo, the general dimensions of the valve housing and clearances required round it improve proportionally with mainline measurement, so additionally preserve that in thoughts when deciding on one on your residence. We reviewed the largest-available 1.25-in. model, however if you’re tight on house think about using the three/4 in. or 1 in. variations.


The Flo Shutoff valve housing itself is molded in navy blue, and hides the electronics, Wi-Fi radio, and the waterway with a motorized ball valve that’s employed to manage water circulation. A inexperienced thumb activate the entrance of the valve signifies the place of the ball valve: when the thumb flip is parallel to the water circulation the valve is open; when perpendicular to the water circulation it’s closed. The ball valve itself is chrome plated to advertise lengthy life.

The waterway incorporates a plastic turbine on its outboard port, which is used to precisely measure water circulation and utilization.
Additionally included within the field are an non permanent plastic spacer to be used throughout set up, an influence adapter with 10-foot cable, energy adapter wall bracket, and wall anchors for the bracket. Do consider the Flo valve itself doesn’t make the most of a bracket, so its weight have to be totally supported by the encompassing plumbing system. A postcard containing a QR code encoded with the unit serial quantity and MAC tackle are additionally included, and are used when initially pairing the gadget with the required Moen Good Water Community telephone app.
Total, the Flo setup is properly thought out and seems to be ruggedly constructed. The 1.25-in valve is sort of heavy, largely attributable to its bodily measurement, motorized 1.25-in. ball valve shutoff mechanism, and stable brass fittings and tailpieces.

Flo by Moen Overview: Set up and Setup
Bodily set up of the Flo Shutoff is greatest dealt with by a licensed plumber, because it requires turning off the water provide and slicing into the mainline plumbing itself, and moreover might require extra twists and turns of plumbing to accommodate it. Nonetheless, normally the method is simple within the occasion you wish to undertake this as a DIY challenge and have the requisite plumbing instruments and expertise.
Moen does supply rough-in kits to plumbers and DIYers in numerous sizes and configurations that may be bought prematurely of the Flo by Moen Shutoff itself. These kits embrace an inline spacer and numerous fittings that exactly match the end-to-end dimensions of the Flo valve, and could be helpful throughout new building or remodels the place future set up of the valve is desired. The rough-in kits are designed to allow on a regular basis water circulation and will be left in place indefinitely. As soon as the rough-in items have been put in and examined, a future set up of the Flo valve is a comparatively easy course of.
Within the case of our retrofit set up, we had a 1-in. mainline so bought a pair of stainless-steel 1.25 x 1.0 bushings to adapt the 1.25-in. brass tailpieces at each ends of the Flo valve to a 1-in. NPT threaded pipe measurement. And since our system is 100% plumbed with versatile PEX plastic water strains and fittings, we additionally bought SharkBite adapter fittings to make the ultimate transitions from threaded NPT pipe to PEX pipe. On this vogue there was no must solder any joints.

The Flo valve will be put in both horizontally or vertically. In our case, because of the present location of the principle water shutoff valve and its proximity to a water softener system, we elected to create a brand new S-shaped plumbing route so the Flo valve could possibly be put in vertically. After we turned off the principle water valve, we severed the incoming water line, then used brass SharkBite quick-connect fittings and brief lengths of PEX pipe to vogue the brand new plumbing route. Moreover, we used C-shaped conduit clamps on the high and backside of the brand new plumbing part to assist the added weight of the pipe, fittings, and the Flo valve.
To wrap up the plumbing section, we put in the equipped Flo spacer as a placeholder for the Flo valve, then turned the mainline again on to check the system for leaks. After taking good care of a number of minor drips within the brass parts of the system by utilizing teflon tape, we turned off the water once more and changed the spacer with the Flo valve. Lastly, we mounted the ability adapter above the valve and related its cable to the highest of the valve, then adopted the guided directions within the Moen app to attach the valve to WiFi and full the set up. After a number of moments, the inexperienced LEDs on the highest of the valve got here alive and the Flo was seen on the app residence display screen.
Among the many preliminary setup duties is configuring the House Traits panel. Right here, specifics round residence measurement, variety of occupants, and water consumption targets are set. One click on down, the Home equipment & Facilities panel allows checking off the kind of indoor and out of doors fixtures, home equipment, and different facilities current within the residence. The Flo system will then take this data into consideration because it makes an attempt to correctly categorize utilization.
Video: Watch Flo by Moen in Motion
Flo by Moen Overview: The way it Works
Startup and Studying Mode
As soon as Flo by Moen is up and operating, it instantly begins measuring entire residence water utilization by its inside sensors and drops into Studying Mode—per week or so of AI-enhanced studying on the fly. Throughout this preliminary coaching interval, the automated shutoff function is disabled and the My Flo Modes—together with House, Sleep, and Away states—are disabled as properly. At this stage, the system is making educated selections on particularly what kind of gadget or units are consuming water at any time limit. It does this by sensing and dissecting the water circulation, water stress, and occasion length footprint and matching that in opposition to its data base of units.
The objective after all is to measure and categorize water utilization as carefully as doable, whereas studying in regards to the typical water utilization occasions occurring each day. In doing so, the system intends to distinguish between regular water utilization occasions and potential uncommon occasions (e.g. those who might point out a leak or excessive circulation occasion). In these uncommon circumstances, the automated mainline water shutoff function could also be activated immediately to forestall catastrophic water harm, or a notification could also be raised within the app so the home-owner can decide on how you can deal with it.
Realtime Monitoring and Immediate Shutoff
From the second it’s turned on, the Flo by Moen sensors start monitoring realtime water use in gallons per minute (GPM) and water stress (PSI), in addition to logging every water occasion. An occasion could also be one thing so simple as a rest room flush or momentary opening and shutting of a faucet, or longer and extra advanced occasions akin to baths, showers, panorama irrigation, or water softener regeneration. In every occasion case, the system logs the gadget kind/class, date and time, length in minutes and seconds, and water quantity.
Within the Moen app residence display screen, a Complete House Controls part seems when the Flo is added, and most significantly, the Flo Shutoff swap is entrance and middle so you may remotely and immediately flip the water primary on or off from right here. We are saying immediately since that’s exactly the way it occurs: inside a number of seconds of tapping the button, Flo will spin up its motor, and with a servo-like whir the ball valve rotates 90 levels to close off the water primary.
The My Flo Modes are additionally selectable from the Complete House Controls part.
The Pleasure of Stats
Should you’ve by no means skilled whole-home water monitoring, you could be in for some surprises and shocks. Shock! Who knew somebody within the residence was taking 45-minute showers and utilizing 60+ gallons of water every time? With Flo by Moen, you’ll be capable to see these leisurely bathe occasions within the Moen app, together with the beginning time, length, and gallons used—in case you wish to do some sleuthing to find out the responsible occasion. Shock! Did you actually understand how a lot water your family was utilizing day by day? In all probability not. Your new water information supply is a far cry from the mundanity of a month-to-month water invoice.
Moen gives loads of choices on how you can examine water utilization. For a snapshot of realtime utilization, simply faucet the Flo Shutoff tile from the app residence display screen, and from the Overview panel you will get present water stress, circulation fee, and space temperature readings by speedometer-type meters. Under the meters, you will get Sensor Developments, line charts for circulation fee, stress, and temperature plotted for the final 7 days, final 24 hours, or realtime.
On the Utilization tab, cumulative water utilization for the day or week are seen in a meter and accompanying bar chart, whereas rolled-up Utilization By Fixture (or class) over the chosen interval seems under that.
However essentially the most telling data lies within the Historical past panel. Right here, fixtures and classes are extra finely segregated, and particular person classes will be expanded to disclose all particular person occasions and their particulars. Once more, the metrics at this occasion stage embrace date, time, length, and water quantity.
How correct was Flo at correctly figuring out and categorizing the plumbing units on our water community? Normally, it did an admirable job at putting units into broad classes, akin to Faucet, Bathe, and Rest room. For units it couldn’t particularly establish, it tended to position them right into a common Home equipment class—this catch-all classification included issues akin to dishwashers, in-door water dispensers, craft ice makers, washing machines, pot fillers, water softeners, and different units.
Moreover, whereas it’s not evident from the person interface, every particular person water occasion will be tapped to allow enhancing of its fixture or class. As an illustration, if you realize a selected Bathe occasion was certainly a Backyard Hose occasion, you may faucet the Fallacious Fixture button and choose the right one. Flo ideally would then be capable to correctly categorize comparable occasions sooner or later. Following enhancing, the particular occasion will seem underneath its new class, with subtext indicating the earlier class. This information was additionally mirrored within the reporting instruments.
In follow, nonetheless, we discovered that after enhancing an occasion to mirror a brand new gadget kind, Flo was usually not in a position to accurately establish the gadget the following time it was used.
My Flo Modes
The My Flo Modes are selectable from the Moen app residence display screen, and are primarily designed to regulate how and when the automated shutoff function works. These modes work as follows:
- House Mode: The traditional mode for day-to-day use. House Mode brings the common stage of leak and utilization safety, together with alarm notifications for higher-than-normal utilization and computerized water shutoff enablement. You’ll sometimes get an alert or notification earlier than Flo takes any drastic motion round shutting off the water.
- Away Mode: The mode to make use of if you end up away for an prolonged time frame or on trip. Away Mode brings an extra stage of leak and utilization safety by studying what utilization is like if you’re away. On this mode, Flo can immediately set off an computerized shutoff when it detects increased than regular utilization or when it thinks a serious leak has occurred.
- Sleep Mode: This mode will not be what you assume. Sleep Mode merely ignores all proactive and real-time exams and silences all alarm notifications, and is designed to be used when irregular water utilization is anticipated like filling a swimming pool or spa, or having a number of company keep over. So if you are sleeping, make sure to use House mode.
Alerts, Notifications, and Well being Checks
Flo can generate myriad alerts and notifications through textual content message, electronic mail, telephone name, or in-app when in House or Away mode based mostly on extraordinarily granular settings within the Flo Notifications panel. The alternatives are intensive in each modes, and are categorized into Crucial Alerts, Warning Alerts, and Data Alerts. In all, there are 27 particular person settings for House mode and one other 27 settings for Away mode. Beneath every of these, you may individually decide in or out of textual content, electronic mail, name or in-app notifications. Suffice it to say, you’ll wish to rigorously evaluation these to make sure you are getting what you want on your state of affairs.
Flo additionally gives what they name FloSense, a world alert sensitivity setting. A slider with a spread from Much less Alerts to Extra Alerts dictates how the system will reply with alert notifications when uncommon exercise is detected. So should you discover you might be nonetheless getting too many alerts, simply crank down this setting.
Flo has additionally built-in a plumbing well being test function, known as MicroLeak Check. By default, this common plumbing well being test runs as soon as per day by routinely turning off the water primary and monitoring for any leaks or abnormalities within the pressurized system. After it runs its course over a span of two to 4 minutes, the water primary is turned again on and outcomes get reported based mostly on its settings within the Notifications panel.
To check this function, we opened a faucet to supply a circulation of about 1/10 gallon per minute then initiated a guide MicroLeak Check. The take a look at instantly detected the water circulation and raised an alert within the app, noting a ten.79% drop in water stress. The app instructed we test all of the fixtures in the home to ensure they had been tightly closed and sealed.
Leak Detection and Automated Shutoff
Moen says leaks as small as one drip per minute will be detected. We weren’t in a position to confirm that, however we had been in a position to simulate a bigger “leak” in our water community.
In our testing, we simulated an Away Mode leak and computerized shutoff situation. First, we set FloSense to most sensitivity. Secondly, we adjusted Away Mode Notifications to set off immediately and instantly notify when any sudden water use was detected, and lastly, we put the Flo into Away mode.
Then, all that was left was to activate some water, so we opened a rest room sink faucet. Immediately, we acquired a textual content indicating sudden water utilization, and instantly we may hear the whir of the Flo because it activated its shutoff valve and turned off the water. This all occurred inside a handful of seconds.
Guide Shutoff
Within the occasion of an influence outage or community outage, the Flo shutoff valve can nonetheless be operated manually by utilizing the included hex wrench. The thumb flip have to be totally depressed previous to rotating it clockwise the required 90 levels to open or shut the valve.

Flo by Moen Overview: Integrations
Flo by Moen can combine with a number of sensible residence ecosystems, together with Amazon Alexa, Google House, Good, Ring, and Alarm.com. However don’t count on too many options to be uncovered by these integrations.
By means of instance, we examined the Google House integration—however performance was restricted to controlling the open/shut place of the shutoff valve, in addition to the mode selector. Nonetheless, this minimal stage of integration is typical for Google House and will not totally symbolize different platforms.
Flo by Moen Overview: What’s Lacking and a Few Points
Flo by Moen is usually very properly thought out and operates with no hitch. Nonetheless, whereas the reporting by the beneficial Moen Good Water Community app is intensive, you may solely evaluation information from the previous week. For instance, there isn’t a facility to view the historical past of earlier months, or to match August of this 12 months to August of final 12 months.
In equity to Moen, if you’d like extra in-depth reporting by week, month, or 12 months, you may elect to make use of the standalone Flo by Moen app as an alternative. Flo additionally gives an online interface, with intensive controls and comparable deep reporting.
On points, few had been encountered and so they had been usually minor. Over the month or in order that we carried out our testing, we sometimes skilled sluggishness when launching the Moen Good Water Community app. In these circumstances, the house display screen failed to attract, doubtless attributable to community points. A relaunch of the app a number of moments later sometimes resolved these points. Additionally, when cycle testing the Flo shutoff valve by repeatedly tapping the open/shut button within the app, the app stopped responding. We relaunched the app and rebooted the valve after these incidents and all appeared to be high-quality.
The Backside Line: A Water Community Security Internet

The Flo by Moen Good Water Monitor and Shutoff is a perfect water community security internet for owners needing to observe whole-home water utilization, follow water conservation, and defend their houses from catastrophic water harm. We had been impressed by its total clean operation by a number of weeks of testing on our water community, stable construct high quality, respectable accuracy in monitoring and measuring utilization, and total ease of use. We extremely advocate it.














