Replacing a kitchen faucet looks straightforward in the product video — remove two nuts, disconnect two hoses, reverse the process. In a Calgary home with 10–20 years of hard-water scale on the shut-off valves and corroded supply line connections under the sink, the process has a few hidden complications. This guide covers faucet selection, shut-off valve assessment, supply line replacement, and the effects of Calgary's hard water on the new installation.
Choosing the right faucet for your Calgary sink
Hole count: single-hole vs. 3-hole vs. 4-hole
| Configuration | Holes | Common in Calgary | Notes |
|---|---|---|---|
| Single-hole | 1 (spout + handles integrated) | Post-2000 renovations; new construction | Escutcheon plate covers unused holes if converting from 3-hole |
| 3-hole (4-inch spread) | 3 holes, 102mm between outer holes | Very common in 1970s–1990s homes | Centre spout + two handles; most replacement faucets fit |
| 3-hole (8-inch spread) | 3 holes, 203mm between outer holes | Some 1980s–1990s cast iron sinks | Requires wide-spread faucet; fewer choices available |
| 4-hole | 3 holes + 1 extra (for soap pump or sprayer) | 1990s–2000s stainless sinks | Extra hole gets a soap dispenser, air gap, or decorative cover |
Before purchasing, confirm the hole count and spread in your sink. Measure from the centre of the left outer hole to the centre of the right outer hole. Note the countertop or deck thickness (important for the mounting hardware reach).
Pull-down vs. pull-out spray
Pull-down faucets (spray head pulls straight down into the sink) suit deeper sinks and provide more reach. Pull-out faucets (head pulls forward and out) suit shallower sinks and cabinets directly below. The docking magnet mechanism on pull-down heads that have seen Calgary hard water can lose magnetic strength as mineral deposits coat the magnet surface — clean with vinegar annually.
Assessing the shut-off valves before starting
The under-sink angle stops (shut-off valves) are the first potential problem in any Calgary faucet replacement. Calgary's 170–200 mg/L hard water deposits calcium on valve seats and packing over time, making valves seized or unreliable.
Valve types and age
| Valve type | Typical age in Calgary homes | Reliability | Action |
|---|---|---|---|
| Compression (multi-turn, brass) | Pre-2000 installs | Often seized after years of no operation | Test before starting; plan to replace |
| Ball valve (1/4-turn) | Post-2000 installs | More reliable; mineral deposits still possible | Test; usually OK; replace if handle is stiff |
| Ceramic disc (1/4-turn) | Post-2010 renovations | Best; calcium-resistant discs | Test; rarely needs replacement unless very old |
Testing the shut-off valves
Before starting any work: turn off the valve, open the faucet, confirm the flow stops completely. If the flow continues or only reduces, the valve does not seal. Replace the valve before proceeding with faucet installation. Replacing an angle stop requires shutting off water at the main shut-off — confirm its location before starting.
Calgary hard water impact on supply lines
Why to always replace supply hoses
Braided stainless steel supply hoses have an outer stainless braid and an inner rubber lining. Calgary's hard water is mildly corrosive to rubber compounds over time. The rubber lining degrades and can delaminate internally, causing a blockage or internal failure that does not manifest as an external leak until sudden failure occurs. Any hose older than 8–10 years should be replaced when the faucet is changed. The cost of two new supply hoses is $8–$15 — cheap insurance against a burst hose flooding the cabinet.
Connection mineral buildup
The connection points between the supply hose and the angle stop accumulate white calcium deposits on the ferrule and threads. When disconnecting old hoses:
- Use penetrating oil (PB Blaster or similar) on the threads if they resist loosening — do not force with excessive torque or you will damage the angle stop valve body.
- Clean the threads on the angle stop outlet with a wire brush before connecting the new hose.
- Use PTFE tape (2–3 wraps) on the male thread before connecting — this helps compensate for any thread damage from mineral buildup.
Complete faucet installation sequence
Before you start: materials list
- New faucet (confirm hole count and spread match)
- Two new braided stainless supply hoses (300mm or 450mm, match the existing)
- Plumber's putty or silicone (check faucet instructions — many specify one or the other)
- PTFE tape
- Basin wrench (for reaching the mounting nut under the sink deck)
- Adjustable wrench and channel-lock pliers
- Penetrating oil (have on hand for seized connections)
- Small bucket and rags for residual water in the lines
Removal
- Close both angle stops; open the faucet to release pressure; confirm flow stops.
- Place bucket under the supply connections. Disconnect the supply hoses from the angle stops (most have 3/8" compression fittings).
- Disconnect the supply hoses from the faucet body inlets (typically 1/2" straight thread or 3/8" compression).
- Using a basin wrench, loosen and remove the mounting nut(s) from under the sink deck.
- Lift the old faucet body out from above.
- Clean the sink deck around the mounting hole(s) — remove old putty or silicone residue completely before installing the new faucet.
Installation
- If using an escutcheon plate (single-hole faucet in 3-hole sink), set the plate first and confirm the gasket is seated flat on the sink deck.
- Apply a rope of plumber's putty or a bead of silicone under the faucet base (per manufacturer instructions — some pre-install a rubber gasket that makes putty unnecessary).
- Feed the supply lines down through the mounting hole from above.
- Secure with the mounting nut and washer using the basin wrench — firm, but do not over-torque; the deck or gasket can crack.
- Connect the supply hoses to the faucet inlets: use PTFE tape if the connection is threaded; hand-tight plus 1/2 turn with wrench. Over-tightening crushes the ferrule or damages the fitting.
- Connect the supply hoses to the angle stops: PTFE tape on male threads; hand-tight plus 1/2 turn.
- Open the angle stops slowly (hot first, then cold). Check all connections for drips.
- Let the faucet run for 3–5 minutes to flush debris. Remove the aerator and rinse to remove any installation debris or calcium dislodged during the process.
Hard water aerator maintenance in Calgary
After installation, add aerator cleaning to your home maintenance schedule:
- Every 12–18 months: Unscrew the aerator from the faucet tip (clockwise when looking up at it from below). Soak in undiluted white vinegar for 30 minutes. Brush clean with an old toothbrush. Rinse thoroughly. Reinstall.
- Symptom check: If the stream is uneven, reduced, or spraying sideways, the aerator is partially blocked by calcium. Do not assume a flow problem indicates a supply pressure problem — clean the aerator first.
- Pull-down spray head: The spray head also has an aerator/restrictor in the connection point between the head and the hose. This can also scale up. Separate the head from the hose and soak both connection points in vinegar.
Handyman vs. licensed plumber scope in Alberta
| Task | Handyman (OK) | Licensed plumber (required) |
|---|---|---|
| Replace faucet body | Yes | |
| Replace supply hoses | Yes | |
| Replace angle stop valves | Yes (requires main shut-off) | |
| Extend or relocate supply lines | Yes | |
| Relocate or add drains | Yes | |
| Replace main shut-off valve | Yes (City coordination required) | |
| Install garbage disposal (electrical) | Licensed electrician for new circuit |
Frequently asked questions
What is the difference between single-hole and 3-hole kitchen faucets?
Single-hole integrates spout and handles into one unit through one hole. 3-hole faucets use three holes: centre spout plus two outer handles (4-inch or 8-inch spread). Calgary homes pre-1990 almost always have 3-hole sinks. Single-hole faucets include an optional escutcheon plate to cover unused holes in a 3-hole sink.
How do I know if the shut-off valves need replacement before a Calgary faucet install?
Close each angle stop and test by opening the faucet — if water continues to flow, the valve fails to seal. Calgary's 170–200 mg/L hard water causes calcium buildup on valve seats, especially in compression-type valves from pre-2000 installs. A stiff or non-closing valve should be replaced before faucet installation begins.
How does Calgary hard water affect faucet supply lines and aerators?
Hard water deposits calcium at connection points and inside rubber-lined supply hoses; replace any hose older than 8–10 years when changing the faucet. Aerators scale up every 12–24 months — soak in white vinegar for 30 minutes, brush clean. A pull-down spray head also has a restrictor at the hose connection that can scale up and reduce flow.
Is kitchen faucet installation a handyman job in Alberta?
Yes — replacing a faucet, supply lines, and angle stop valves does not require a licensed plumber in Alberta when no pipe relocation is involved. Licensed plumbers are required for extending supply lines, relocating drains, or replacing the main shut-off. A new circuit for a garbage disposal requires a licensed electrician.
What is the correct sequence for installing a kitchen faucet in Calgary?
Close angle stops → confirm flow stops → disconnect old supply hoses → remove mounting nut with basin wrench → lift out old faucet → clean deck → place escutcheon if needed → set new faucet with putty/silicone → secure mounting nut → connect new supply hoses (PTFE tape, hand-tight + 1/2 turn) → open angle stops → check for drips → flush faucet and clean aerator of debris.
Calgary kitchen faucet installation
Steve brings all tools, new supply hoses, and PTFE tape. He assesses the shut-off valves before starting, advises if replacement is needed, and leaves the area clean after installation.
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