Frequently Asked Questions

Backflow preventer

What is a backflow preventer and how does it work?

A backflow preventer is a device plumbers install on your home's water pipe to prevent contamination. The water should only flow one way, and that is in your home. This device stops water from flowing in the opposite direction back into the main water supply, and that is why we are here; to help keep your drinking water clean and untouched.

BackWater valve

How does a backwater valve work?

In the past couple months, we have experienced severe downpour to the point where people have had flooding in their basement caused by a water backup problem. Many people have been calling our service due to dirty sewage filling up their basements which is detrimental. To prevent all of this, we install a backwater valve. The opposite of a backflow preventer, a backwater valve is a valve installed on your sewer line to allow sewage to only flow one way, and that is out of your home. As mentioned, whenever we experience heavy rainfall the main sewer lines can be overwhelmed, and can cause water or sewage to flow back into your home. We have the solution to help keep your home clean and keep that dirty sewage water out of your home.

backflow prevention testing

What is Backflow Prevention testing?

To install a backflow prevention device, the plumber must be certified to install it to ensure that it meets industry standards and functions properly. A proper installation helps ensure that the water does not become contaminated, therefore improving the quality of your drinking water. If you are concerned about the water in your home, give us a call to give you further detail and information on what the next steps are to making your home safer.

Sam Harb & Family can complete all the installations and testing in the above section call now to book your appointment.


How to choose the best plumbing fixtures?
The important thing to know is that you get what you pay for. This means that if you go for a cheap fixture, it will only last for a limited time. However if you choose a brand with credibility, then you can expect a longer lifetime. When you choose a mid-to-high priced fixture you should also expect not to replace it as frequently. It is also important to know what the components are made of inside the fixture. Stainless steel and brass components last longer than other metals and plastics.


We have water backup problems in our basement when there is heavy rain. How do we protect against this costly risk? How effective is the solution?
The reason this occurs is that when there is heavy rainfall, it overloads the city sewer or the septic system. The solution is installing a backflow valve which has a flapper that only allows water to flow in one direction and that is out and away from your residence. When the water pushes back in the opposite direction, the flapper lifts and seals the drain shut.

In other cases, the basement foundation has cracks and rain is seeping in from the walls. You will need to waterproof your basement and also install a sump basin and drain tile around the foundation to collect the water and pump it away from the foundation. It is also advised to raise the level of the ground around the house in order to drain water away from your residence.


My garbage disposal unit is expelling a foul odour, what should I do?
Foul odours occur from a buildup of food debris within the disposer. To eliminate this odour, place about a full tray of ice cubes along with some lemon or orange peels in the disposer and run for 20 seconds. This is followed by applying some dish soap into the disposer while it is still running. Now run cold water for about 30 seconds to rinse all the debris away. If the problem persists you can count on us to help with this issue.

Why does my toilet expel a foul odor when I flush?
Usually, when there is a foul odour after flushing it means that the toilet wax ring is not sealed to the toilet or the floor. There is air that must pass through the drain when water is drained. Because the wax ring is not properly sealed anymore, this air is pushed between the floor and the bottom of the toilet, rather than down the drain. To eliminate this issue, the toilet must be removed and resealed to the floor with a new wax ring.

What do I do when water does not drain in the basement floor drain and expels a foul odor?
It most often is caused by a blockage in the drain and this will require a snake or a hand auger to be used in order to remove the debris. Do not use liquid drain cleaners because they do not work effectively in horizontal pipes and instead linger in one section of the pipe. Also, some pipes have a tar coating which the acid will eat and your pipes will corrode.

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Sam Harb & Family Plumbing


2465 Mount Forest Dr, 

Burlington, ON, L7P 1J7


OAKVILLE: 905-847-7020

5-519 Dundas St. West Suite # 407

Oakville, ON, L6M 5K3


MILTON: 905-749-4272

420 Main St. East Suite #488

Milton, ON, L9T 5G3



Monday - Friday 08:00 AM - 05:00 PM

Saturday 10:00 AM - 03:00 PM

Sunday Closed

For urgent service, please call us directly. Same day call backs cannot be guaranteed for email inquiries.

Sam Harb in Burlington, ON on Houzz

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