When choosing bathroom fixtures, start with the shower: in Québec, the shower valve must be pressure-balanced or thermostatic, and set so the water does not exceed 49°C. Next, check the sink, in particular the number of holes in the counter, and take your water quality into account, especially if the house is on a well. At Wilfrid David in Chénéville, our showroom at 77, rue Principale lets you see and handle products before you decide.
The shower: a Construction Code requirement
The plumbing chapter of Québec's Construction Code addresses this point directly. Valves supplying a shower or bathtub must be pressure-balanced, thermostatic, or a combination of both. They must meet the faucet standard set out in the Code, and be adjusted so that water is not delivered at more than 49°C.
The reason lies with the water heater, which must keep its water at 60°C or more to limit bacterial growth. According to the Régie du bâtiment du Québec's notes, water at that temperature can cause a second-degree burn within a few seconds. The shower valve therefore acts as a safeguard. The Code allows certain exceptions, for example when a thermostatic mixing valve already controls the hot water supply, but for a typical home renovation, this is the rule to keep in mind.
Pressure-balanced or thermostatic
A pressure-balanced valve responds to changes in pressure. If someone flushes a toilet while you are showering, the cold water pressure drops and the valve reduces the hot water in proportion, preventing a sudden rise in temperature. It is the most common type and suits most homes.
A thermostatic valve holds the temperature you select, regardless of water use elsewhere in the house. Temperature and flow are usually adjusted separately. It offers greater comfort and generally costs more.
The RBQ's notes also point out that pressure-balanced valves are sensitive to seasonal changes in cold water temperature. In our region, well water is considerably colder in March than in August. If your shower is not warm enough in winter, or too hot in summer, we recommend having the setting checked.
The sink: check the counter before you buy
A bathroom faucet has to match the holes drilled in the counter: a single hole, three holes close together or three widely spaced holes. These configurations are not interchangeable. If you are keeping the vanity, count the holes, measure the spacing and take a photo to bring to the store.
If you are replacing everything, choose the counter and faucet together. Also check the height and reach of the spout in relation to the basin: a spout that is too short directs water onto the rim, while one that is too high causes splashing.
Well water and maintenance
Hard water and fine sand build up in the aerator at the tip of the spout and inside the cartridge. This is a result of water quality rather than a faulty faucet. It is therefore best to choose a model that is easy to maintain, with an aerator that unscrews easily and a replacement cartridge that will remain available for years to come.
Before you buy, ask to be shown how the faucet comes apart. We are glad to take the time to explain it in the store.
A bathroom renovation is also a good time to assess your water heater. We compare the options in our article on tank and tankless water heaters.
See the products in our showroom
A photo cannot tell you how heavy a handle feels, how smoothly it moves or what the water flow is like. Our showroom at 77, rue Principale in Chénéville displays bathtubs, toilets and faucets, and we keep plumbing parts in stock. The store is open Monday to Friday, 8 a.m. to 5 p.m. Bring your measurements and photos, and we will review your project with you.
The same applies to toilets. Seat height and bowl shape vary from one model to another, and a toilet is used every day for many years. Comparing a few models in person makes the decision easier.
When to call a professional
Renovating your bathroom and want to confirm that your shower valve meets the Code and is set correctly? Call us at 819-428-3161 or visit the store. We install fixtures and handle complete bathroom plumbing. See our residential plumbing service and our store page. If you notice a sewer smell in the bathroom, read our article on the causes of a sewer smell as well.
Filed under Residential plumbing
