Residential Water Conservation

If you live in Waterloo Region and are familiar with the water capacity constraint, you may wonder if conservation can help. Reducing water use is always important because it helps manage and protect the supply we have, especially during warm, dry weather. The community has done a great job to conserve over the years, and we will keep this up with your help. Learn more about conservation below and find more information on the constraint by visiting the FAQs in the water capacity information hub. 

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As our community grows, we all play a role in good water management that includes conservation. We have free programs and resources including our indoor water savings tips sheet and outdoor water savings tips to help.


Book a free home water review

During a 45- to 60-minute visit, a conservation expert will assess how your household uses water. They'll identify any potential leaks and personalized actions you can take to save water.

Homeowners in Waterloo region using at least 5.5 cubic metres (m3) of water per person, per month qualify for a free home water review. Residents interested in registering for the Water softener plumbing rebate program may also be eligible.

  1. Together, we'll review your water bill and read your water meter to better understand your concerns. Using your water bill as a measurement tool is the first step in your water-saving journey.
  2. We'll review all water-using fixtures and appliances in your home for potential leaks or inefficiencies. For homes with water softeners, we'll test your water hardness too.

  3. We'll have a conversation about how your household uses water. Before your visit, consider how much water you are using for various water-using activities. This includes how long you are in the shower, how many times you flush the toilet, etc. 

  4. Within a week of your review, we'll send you a personalized report with our findings with  actions you can take to reduce your water use. 

We may not find obvious causes of water waste when reviewing fixtures and appliances. In this case, excess consumption likely comes from water use habits or behaviours.

After completing thousands of home water reviews, we've found that people often underestimate how much water they’re using for various activities around their home.

A review helps to highlight the difference between what you perceive you’re using, and what you’re actually using. Since your water meter measures the amount of water flowing through it, we have an accurate starting point for understanding how habits and behaviours can directly contribute to your household water use.

  1. Find the water section of your utility bill.
  2. Look for the area listing “Consumption” on your bill. Water use is measured in cubic metres (m3). Note: Your utility bill may look different based on the municipality you live in.

    Water bill sample for consumption
  3. Calculate average monthly water use per person, take your monthly household consumption and divide it by the number of people living in your home. If your average monthly water use per person is 5.5 cubic metres or higher, you're eligible for a free home water review.

Note: For households receiving a water bill every two months, divide your bi-monthly household consumption by two, then divide your monthly consumption by the number of people in your home.

Example: A four-person household in the City of Waterloo with bi-monthly household consumption of 36 m3

  1. To calculate monthly household consumption, divide bi-monthly household consumption by two: 36 m3 ÷ 2 = 18 m3 
  2. To calculate average monthly water use, per person divide monthly household consumption by number of people:18 m3÷ 4 = 4.5 m

Watch this video to learn the top ways people in Waterloo region have saved water and lowered their water bill. 


Checking for leaks in your home

Leaks can be costly in water loss and money. Dripping faucets and other leaks can add up over time. Watch this video to learn where to look for leaks in your home.

Toilet leaks

Your toilet can silently leak up to 330 litres a day. That's about $60 a month in lost water. In many cases, replacing the flapper (the seal between the tank and the bowl) can be an easy fix. If you haven't changed the toilet flapper in several years, it is worth checking for a leak.

How to check if the toilet flapper is leaking

  1. Add a few drops of food colouring to the tank of the toilet.
  2. Wait 15 to 30 minutes.
  3. Look in the toilet bowl. If you see food colouring, you have a leak.
  4. Flush the toilet to avoid staining.

Outdoor water use

Outdoor water use, such as watering grass or gardens, filling pools and washing cars can quickly increase your water use and your water bill.

For example, watering gardens for 20 minutes every other day with a hose nozzle would use 4,500 litres of water per month and add about $25 to your monthly water bill.

Outdoor water use restrictions

The Region of Waterloo Water Conservation By-law 07-069 is in effect from May 31 to September 30. The By-law helps to lower daily water use and level off peak demands that can put a strain on the water supply and distribution system.

Learn more about the Water Conservation By-law and find your watering schedule based on you address.

Smart watering tips

  • A thorough watering once per week is the best way to maintain a healthy lawn. Rain is often enough!
  • Over watering your lawn or garden is harmful, not helpful! Excess moisture can rot grass roots and creates the perfect environment for disease.
  • Watering early in the morning is best for your grass and gardens. Midday wind and hot sun will evaporate the water meant for your plants.
  • Try leaving a small container (like a tuna can) on your lawn! When the container is full, your lawn has enough water for the week. Only one inch per week encourages deep, healthy roots.
  • Brown grass isn’t dead, only dormant. It’s OK to let your lawn go dormant. Grass can live four to six weeks without water. It will bounce back!

Choose a water wise garden

  • Choose plants that don’t need much water and are suited to our local climate.
  • A layer of organic mulch helps keep moisture in the soil and provides nutrients too.
  • Use rain barrels to harvest rainwater that’s perfect for gardens and grass.

Tips for irrigation systems

  • Use a timer to not water too long, and only within by-law hours.
  • Check regularly for leaks.
  • Make sure you're not directing water onto sidewalks or other hard surfaces.
  • Consider an efficient drip irrigation system that delivers water to the roots.
  • Manual irrigation is more efficient and less expensive than an automatic system.

Rain barrels

As of 2023, the Region of Waterloo is no longer holding rain barrel sales. 

Using rainwater reduces stress on the municipal water system during the summer months from increased demand and more drought weather events. Rain barrels also help divert water from paved surfaces keeping water cleaner and reducing stress on stormwater infrastructure during rainstorms.

If you are using a rain barrel, you may be eligible for a stormwater credit on your water utility bill. Contact the City where you live to learn more.

City of Kitchener stormwater credit program

City of Waterloo stormwater credit program

Schedule to winterize your rain barrel once the weather gets cooler – but before the first freeze. This will prevent water from freezing and cracking your rain barrel so you'll be ready to collect rainwater next spring.

Choose a time when you’ll have a chance to set it out to dry in direct sunlight.

  1. Drain your rain barrel – open the spigot (tap) and once drained, flip upside down to drain any remaining water.
  2. Remove and clean the spigot and all hoses – hoses can split in winter temperatures, so it's best to store indoors.
  3. Clean the barrel, lid and screen – clear out any muck, algae or debris that has built up inside the barrel, on the lid and screen over the summer.
  4. Store your rain barrel – Once your barrel and accessories are clean and dry, it’s ideal to store in a garage, shed or basement. If storing outdoors, place your barrel upside down in a sheltered area. Adding a few bricks on top will prevent it from blowing away.
  5. Reattach your downspout – Don’t forget to re-connect the full-length downspout. Position the bottom of the downspout away from your foundation.

Native gardens and irrigation systems

Pools and hot tubs

If you own a pool or hot tub, you know the enjoyment they can provide. It is also important to maintain your pool and hot tub properly to protect and conserve our community’s water supply.

Reducing the amount of water you use can save you money and help ensure an adequate supply of water for our growing community.

For more information on water saving tips for pools and hot tubs visit the pools and hot tubs page.


Water softener plumbing rebate

Softening only your home's hot water will save you money on water and salt and helps to protect the environment. Softening hot water only can save a household of three, 108 kilograms of salt and 8,800 litres of water per year.

Limited time offer: Receive a one-time rebate of $50 per household to change the plumbing to soften hot water only.

General information on water softeners is available on our Water Softener web page.

Who is eligible?

Waterloo Region homeowners of single, semi-detached or townhouses using a salt-based softener who have:

  • changed plumbing from softening cold and hot water to softening hot water only
  • installed a new water softener that only softens hot water

Businesses and large apartment buildings are not eligible.

Should I soften hot water only?

Softening hot water only has advantages and some disadvantages.

Benefits include:

  • saving money as your softener will use less water and salt
  • saving time with fewer heavy bags of salt to carry
  • less wear and tear on your water softener
  • protecting your hot water heater against scaling
  • lowering chloride pollution in the environment
  • unsalted drinking water from any cold-water faucet in your home

Drawbacks might include:

  • increased cleaning or maintenance to keep scale from building up on toilets, showers and appliances. This can be cleaned with vinegar or other products.
  • Without proper care, fixtures and appliances might not last as long. These costs, however, can be offset by lower water and salt bills.

Each homeowner needs to make the decision that works for them including their level of tolerance for hard water.

  1. Complete the Water Softener Plumbing Rebate form. We will send you a kit to test your home's water hardness. You can also register for the rebate during a free Home Water Review where a consultant will test your home's water hardness and complete the rebate registration.
  2. Submit your water hardness results to complete registration for the program
  3. Complete plumbing changes yourself or hire a plumber. We have a list of licensed plumbers and water softener retailers that support the program.
  4. Confirm your plumbing changes are complete.
  5. Once approved, we'll be in touch to set up an Electronic Funds Transfer (EFT) to allow for a direct deposit of your $50 rebate.

The Water Softener Facts website has information on how water softeners work, a buyers guide and water hardness maps.

Why should I use less salt?
Chlorides from salt are not removed during the wastewater treatment process. Water softener salt ends up in Grand River and can be harmful to plants and animals.

Why should I use less water?
Waterloo Region relies on groundwater for drinking water. As our community grows it is important there is enough water for everyone. Conserving water also helps lower energy use and associated greenhouse gases.

How much will the plumbing cost to soften hot water only?
Plumbing costs are unique for each home and depends on the home's layout. Early program participants are typically reporting costs of $300 to $400.

Can I apply for the rebate if I rent my water softener?
Yes. Renting your water softener does not affect your eligibility for this program. You may want to check the terms of your softener rental contract first.

Can I apply for the $50 rebate if I'm buying new softener?
Yes, as long as you install the new softener on hot water only and were not previously softening hot water only. This applies if you are buying a replacement water softener or your first one.

I already soften hot water only. Can I apply for the $50 rebate?
If you made the switch within the last six months and have the required documentation, you can apply for the rebate. Our rebate program is to encourage people to make the switch and compensate for the plumbing costs.

How long does it take to realize benefits of switching to softening hot water only?
For an average family of three, softening hot water saves an estimated $84 per year. Repayment time depends on your plumbing costs. If the plumbing change costs $350, it would take 3.5 years. 

Can you help me find a plumber to switch to softening hot water only?
The Region of Waterloo does not endorse or recommend specific organizations but we have a list of licensed plumbers and water softener retailers who will help customers soften hot water only.

Will softening hot water only void my washing machine's warranty?
Unlikely, but check your owner's manual to confirm. Most common manufacturers' warranties do not require soft water for their machines. Scale buildup will happen slower when using cold water instead of hot.

Will my showerhead warranty be voided?
No, manufacturers do not require softened water for showerheads. You may get scale buildup on your showerhead affecting water pressure. Remove scale buildup by soaking the showerhead in vinegar.

Does hard water cause spotty dishes? Will scale buildup ruin my dishwasher?
No. Dishwashers are usually connected to hot water only, so the water supply will still be softened. You should not notice any difference with a dishwasher from softening hot water only. If your dishwasher is connected to the cold water line, consult your owner's manual before switching to hard water.

Will hard water create scale buildup inside the toilet tank?
Yes, overtime the flapper and fill valve inside the tank can develop mineral buildup. Buildup may need to be cleaned off the flapper seat or the flapper. Once a year, use vinegar to clean the flapper. Flappers can also be easily replaced. The jets that release water into the toilet bowl may sometimes get clogged on older models. Brush away or clean using vinegar.

It is also important to check the toilet for leaks.

Will my pipes get clogged with scale buildup from hard water?
Modern pipes do not develop scale the way older galvanized pipes did. It would take a long time to build up significant scale. Hard water develops scale much slower when cold compared to hot.

Information for licensed plumbers and water softener retailers

Include your business on the Region of Waterloo's list of licensed plumbers and water softener retailers supporting residents changing their plumbing to soften hot water only.

How to add your business to the list

  1. Watch the Efficient Water Softening for Plumbers video
  2. Complete the Plumbers and Dealers list form

Promote the program to your customers

  1. Display the Water Softener Plumbing Rebate Program poster
  2. Email us to request printed copies

Participating plumbers and water softener retailers

These organizations support softening hot water only. The Regional Municipality of Waterloo gives no warranty, express or implied, as to the quality, merchantability, workmanship or any other matter with respect to any plumber or water softener professional listed on this web page.

Licensed plumbers

James Ball Plumbing and Heating Inc.
144 Jacob Street East, Tavistock
James Ball, Phone: 226-529-0023, Email: james@jbph.ca 
Offers water softener tune-ups: yes
Offers non-salt technologies: yes

Oakridge Plumbing Solutions
69 Trafalgar Avenue, Kitchener
Taylor McCabe, Phone: 519-568-5557, Email: service@oakridgeplumbing.ca
Offers water softener tune-ups: yes
Offers non-salt technologies: no

Plumingo
21-55 Mooregate Court, Kitchener
Stephen Harrington, Phone: 226-929-2317, Email: plumingo.info@gmail.com
Offers water softener tune-ups: yes
Offers non-salt technologies: no

Weinhardt Plumbing Inc.
199 Franklin Street North, Kitchener
W.C. Weinhardt, Phone: 519-894-3670, Email: wcweinhardt@gmail.com
Offers water softener tune-ups: yes
Offers non-salt technologies: no

Mr. Rooter Plumbing
191 Samuelson Street, Cambridge
Steven Little, Phone: 519-884-7206, Email: dispatch@mr-rooter.ca
Offers water softener tune-ups: yes
Offers non-salt technologies: no

Hy-Pro Plumbing and Drains
191 Samuelson Street, Cambridge
Steven Little, Phone: 519-743-1193, Email: dispatch@mr-rooter.ca
Offers water softener tune-ups: yes
Offers non-salt technologies: no

Contact Us

Region of Waterloo
150 Frederick St.
Kitchener, Ontario N2G 4J3
Telephone: 519-575-4400
Fax: 519-575-4481

For general inquiries:
Regionalinquiries@regionofwaterloo.ca