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Guard Dog Valves - Protecting Your Property From Leaks

Regular price $299.00 CAD
Regular price $349.00 CAD Sale price $299.00 CAD
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Customer Reviews

Based on 1 review
Chris Jurewicz (Ontario, Canada)
Great device!

I am putting this unit into my rentals. To test it out, I installed it at home, and to my surprise once every 20 flushes, the tank requires a quick 5 second fill. I have replace the tank insides and the Guard Dog does not detect any issues. Moving it to the the rentals now. GREAT DEVICE!!

Our valves prevent leaks in the leakiest items in your home, your toilets!

With 3/8" fittings on both sides of the valve, it can be installed under any tank filled toilet using hose lines, or hard line solutions. The Guard Dog Valve stays powered by the flow of water into the toilet, so no replacing batteries. 

Simple To Use

The motion sensor detects when a user is present, and allows water to flow to the toilet. No person = No water flow (aka no waste)

Easy Install

Our product can be installed in minutes, providing an easy transition to saving water!

The Guard Dog Toilet Shutoff Valve is a Hydro-generator operated motion sensing toilet supply line shut off system designed to put your mind at ease knowing that no water can go down the drain unless you’re using it.  The only thing better than quickly detecting leaks is preventing them!


  • Motion sensor activates when user is present.
  • Valve opens to allow water to flow to the toilet
  • When the toilet flushes, the hydro-generator recharges the battery, meaning no regular battery maintenance
  • When the user leaves, the valve closes, preventing water from flowing to the toilet
  • No water flow = No continuous leaking

01 - Trillion - Household leaks account for more than 1.7 trillion (1,700,000,000,000) gallons wasted every year! EPA.GOV

02 - HOME - That means the average household wastes more than 10,000 gallons every year in leaks. EPA.GOV

03 - TOILET - Toilets are by far the main source of water use in the home, accounting for nearly 30% of an average home’s indoor water consumption. EPA.GOV

04 - FLAPPER - A single toilet with a leaking flapper can waste up to 200 gallons per day (enough water for 50 flushes). EPA.GOV

05 - LEAK - 1 in 5 toilets leak (20%) LVVWD.COM

06 - FLUSH - On average, a toilet is flushed 5 times per day. In a hotel, it can be up to 7, accounting for housekeeping flushing the toilet during cleaning. WATERMD.COM (pg 94)

07 - TWICE - Water is paid for twice, once when the water comes into the facility, and a second time when it exits the facility as sewage. Sewer billing is based on water usage. EPA DOC (pg 1-11)

08 - SEWAGE - The cost of sewage tends to be greater than the price of the incoming water in highly populated areas. EPA DOC (pg 1-11)

09 - DAMAGE - In 2017, the total amount of insurance payouts for water damage was $13 billion. The average claim cost about $10,000. INSURANCE

10 - PRICE - Since 2010, the price of a monthly water bill for a family of 4 has increased an average of 41% in 20 of the largest U.S. cities and in 10 regionally representative cities, as chosen by Circle of Blue staff. CIRCLE OF BLUE


OUR THREE-YEAR LIMITED WARRANTY Three-Year Limited Warranty: HydroFLOW Canada Inc, (“HydroFLOW”) offers its customers (“you”) a three-year limited warranty against failure or defects in materials or workmanship in any HydroFLOW product (the “Product”) or its component parts, subject to the terms and conditions set forth below. If the Product or any of its parts fails during the first three years of operation, HydroFLOW or its representative will repair or replace the Product, free of charge. For this warranty to apply, you will need to provide proof that the Product has been installed properly and before-and-after proof that such Product is not operating as warranted. What Is Not Covered: This warranty does not cover damage to the Product caused by improper installation, a surge or disruption in power (however caused), a water leak resulting from limescale removal, misuse, abuse, or force majeure (i.e., a flood or earthquake, etc.). Please be aware that water leaks from plumbing systems may result as a consequence of limescale removal. You are therefore advised and have a duty to periodically inspect your plumbing systems to ensure that compression joints remain water-tight. How To Make A Claim & Get Service: A claim under this warranty must be submitted by email to HydroFLOW or the authorized dealer or vendor from which you purchased the Product, and such email must include: (i) a copy of the original receipt or proof of purchase of the Product, (ii) proof that the Product has been installed properly, (iii) a written explanation of the issue(s) with the Product, and (iv) one or more pictures of the Product and surrounding area that displays such issue(s). A HydroFLOW representative will then review your claim and contact you within 10 business days to coordinate the repair or replacement of the Product or to request additional information. Limitations: Warranty claims are strictly limited to the value of the original purchase price or the repair or replacement cost. HydroFLOW shall not be responsible for water leaks or damage caused by the removal of limescale. This warranty is not valid unless the Product is properly used with an appropriate surge protection device of adequate quality to protect the Product and its electronic components. HydroFLOW will not be responsible for any consequential, incidental, indirect, special, punitive or other loss or damage that may result from a product defect. HydroFLOW reserves the right to determine the validity of any claim and remedy in its sole discretion.

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