Somewhere in almost every kitchen sink or faucet purchase, the same question comes up: what do we do with the extra hole? Most sink decks and countertops in Canada are drilled with two, three or four openings, and once the faucet is in place there is often one left over. A built in soap dispenser is the classic answer. It is a small pump head that sits nearly flush with the counter, drawing from a refillable bottle hidden underneath. The counter stays clear, the look is tidy, and there is no plastic bottle sliding around the sink ledge. The catch is that you are committing a hole to a single job for the life of the countertop. Here is an honest look at whether that hole is worth it.
What a built in soap dispenser actually is
The hardware is simple: a pump head and spout above the counter, a threaded shank through the deck, and a reservoir bottle below that typically holds several times what a retail soap bottle does. You press the pump, soap comes out, and every few weeks someone tops up the bottle from under the sink. Most dispensers from the brands we carry, including Blanco, Franke, Kohler and Mountain Plumbing, are offered in finishes designed to coordinate with their kitchen faucet lines, so chrome matches chrome and matte black matches matte black. That finish matching is a real part of the appeal: a dispenser that looks like it belongs with the faucet reads as intentional rather than tacked on.
The case for drilling the hole
- A permanently clear counter. No dish soap bottle in the splash zone, no soap scum ring to wipe up, nothing to knock into the sink.
- Fewer refills than you expect. Under-counter reservoirs are generous, so refilling becomes an occasional chore rather than a weekly one.
- Soap exactly where you use it. The spout reaches over the sink, so drips land in the basin instead of on the counter.
- A better fit for hardworking sinks. On a workstation sink where the ledge carries cutting boards and colanders, there is simply nowhere sensible to park a bottle.
- Easier cleaning. One smooth pump head wipes down in a second, which matters on busy family sinks from Vancouver to Halifax.
The honest trade-offs
Built in dispensers are not for everyone, and the drawbacks are worth stating plainly.
- Refilling happens under the sink. Unless you choose a top-refill design, where the head lifts off so you pour from above, topping up means kneeling and reaching around the garburator. If nobody will do that, the dispenser eventually sits empty.
- Pumps are moving parts. Thick soaps and moisturizing formulas can gum up the mechanism over time. Quality units from established brands hold up far better than bargain hardware, but no pump lasts forever.
- The hole is permanent. In stainless steel you can cover an unused opening with a cap, but in quartz or granite the hole is drilled at fabrication and it is there for good.
- Finish drift. If you change your faucet finish in five years, the dispenser may suddenly clash, and matching an older finish can be harder than it sounds.
Before you commit: the other claimants on that hole
The spare opening in your sink or counter has competition, and this is where planning matters most.
- A dishwasher air gap. Some Canadian jurisdictions require a visible air gap fitting on the counter for dishwasher drainage. The National Plumbing Code addresses backflow protection, but adoption and interpretation vary by province and municipality, so confirm with your local inspector or plumber before assigning the hole to soap.
- A filtered water faucet. If a drinking water filter is anywhere in your future plans, it will want that hole.
- A side spray. Less common now that pull-down faucets have largely replaced them, but still a factor with some traditional faucet suites.
A good rule: assign the hole to the item you will use daily. For most households that is genuinely the soap dispenser, but a required air gap outranks everything, because code is not optional.
Matching the dispenser to your sink and setup
Deck hole sizes are broadly standardized across the industry, but always check the specification sheets for both your sink and your dispenser before ordering, especially with fireclay and granite composite sinks where hole layouts are fixed at the factory. Stainless kitchen sinks are the most forgiving, since many models include knockouts or can be punched for an extra opening. Think about placement too: mount the dispenser on the side of your dominant hand, close enough to the basin that drips fall inside it. And decide up front what goes in the bottle. Dish soap and hand soap both work well; switching between them, or filling the bottle with thick lotion, is how pumps end up clogged.
Canadian buying notes
A soap dispenser does not connect to the water supply, so it is not a plumbing fitting and does not carry the cUPC or CSA listings you should look for on your faucet. That keeps the buying decision simple: choose for build quality, finish match and refill convenience. Dispensers from the brands above ship Canada-wide, and because they are small and light they are an easy add-on to a sink or faucet order whether you are renovating a condo in Montreal, a farmhouse kitchen in the Prairies or a coastal home on Vancouver Island. If you are ordering counters, decide before templating: fabricators drill quartz and stone once, and adding a hole later means a service call.
So, is it worth the hole?
Yes, if three things are true: you have a spare opening with no air gap or filtration claim on it, someone in the house will actually refill it, and you can get a finish that matches your faucet. Choose a quality unit from a brand that also makes your faucet or sink, favour a top-refill design if one is available, and fill it with one soap type. If any of those conditions wobble, cover the hole with a matching cap and decide later; that is a legitimate choice. For more room-by-room planning help, browse our buying guides hub, and you will find dispensers alongside strainers, air switches and other finishing touches in our kitchen accessories collection.
Frequently asked questions
Can I add a built in soap dispenser to an existing countertop?
If there is already a spare hole under a deck cap, installation is a simple do-it-yourself job with a wrench. Drilling a new hole in a stainless sink is feasible with the right punch or bit. Drilling quartz or granite should be left to a fabricator, and drilling fireclay is risky enough that most installers advise against it.
Should I fill it with dish soap or hand soap?
Either works; the important thing is to pick one and stick with it. Very thick or heavily moisturizing formulas are the main cause of clogged pumps. If your preferred soap is dense, a small amount of water mixed in at refill time keeps the pump moving freely.
Why has my dispenser pump become stiff or stopped working?
Almost always dried soap inside the mechanism. Unscrew the head, soak it in warm water, and pump warm water through until it runs clear. Major brands sell replacement pump heads, so a worn pump rarely means replacing the whole unit or touching the counter.
Does a soap dispenser need CSA or cUPC certification in Canada?
No. Certification applies to fittings connected to the potable water system, such as faucets, and a soap dispenser is not one. Where local rules do come into play is hole allocation, since some jurisdictions require a counter-mounted dishwasher air gap, so confirm your local requirements before giving up your last opening.
