JKC
Installation & Care Guide

35mm Ceramic Disc Cartridge – Waterfall Sink 3-Way Selector Kit

Follow along and check off each step as you go — most customers finish in about 10 minutes.

~10 minutes
6 simple steps
No power tools
JKC Emart Genuine Spare Part
Step 0

Before You Start

Tap each item as you gather it — a couple of minutes of prep now saves a return later.

Tools You’ll Need

What’s In The Box

Verify before you start: Confirm your existing cartridge matches these dimensions: 35mm base diameter, 23mm collar diameter, 7mm stem spline bore, 55mm total height. This cartridge is designed for imported Chinese-style waterfall/workstation sinks with a 3-way selector (“tik-tik”) knob system.
Installation

Step-by-Step Fitting

Six quick steps to swap in your new selector cartridge and get back to smooth switching.

Hands full? Have the steps read out loud instead.
0 of 6 steps complete

Nice work — all steps complete!

Your waterfall sink's selector knob should now switch smoothly across all modes.

Turn Off the Water Supply
~1 min
Locate the water supply valve beneath your sink and turn it fully off before starting any work.
Remove the Selector Knob
~2 min
Gently lift or unscrew the selector knob from the sink deck to expose the cartridge housing beneath it.
Take care: If the knob feels stuck, check for a small hidden set screw before pulling — don’t force it.
Access & Remove the Old Cartridge
~2 min
Unscrew the retaining nut around the cartridge housing and carefully lift out the old, worn cartridge.
Take care: Note the exact orientation of the old cartridge before removing it — the new one needs to sit the same way.
Fit the New JKC Cartridge
~2 min
Place the new 35mm ceramic disc cartridge into the housing in the same orientation as the old one, then hand-tighten the retaining nut.
Take care: Hand-tighten first, then snug gently with a wrench — overtightening can crack the housing.
Reassemble the Knob
~1 min
Refit the selector knob back onto the housing and secure it in place.
Test All Water Modes
~1 min
Turn the water supply back on and cycle through all 3 selector modes, checking for smooth switching and no leaks at the base.
Points To Take Care Of

Do's & Don'ts

The most common fitting mistakes — and how to avoid them.

Do

  • Verify the 35mm base diameter and 7mm stem spline match your old cartridge before fitting
  • Turn off the water supply fully before starting
  • Note the orientation of the old cartridge before removing it
  • Hand-tighten first, then snug with a wrench — avoid overtightening
  • Keep the old cartridge until you’ve confirmed the new one works
  • Test all 3 water modes before considering the job complete

Don't

  • Don’t force the selector knob if it feels stuck — check for a hidden set screw first
  • Don’t overtighten the retaining nut, as this can crack the housing
  • Don’t mix up cartridge orientation — it must sit exactly like the original
  • Don’t use metal tools directly on the ceramic disc surface
  • Don’t skip the leak check after reassembly
Quick Reference

Troubleshooting

If something doesn't feel right after fitting, check here first.

SymptomLikely CauseWhat To Do
Knob feels stiff or doesn’t click between modesCartridge not seated fully, or wrong orientationRemove and reseat the cartridge, matching the original orientation
Water leaks from the base of the knobO-ring not seated correctly or wornCheck the O-ring is fully seated; replace if damaged
New cartridge doesn’t seem to fitDimension mismatch with your sink modelDouble-check the 35mm/7mm dimensions against your old cartridge, or contact support
No water flow after installationWater supply not turned back on, or cartridge misalignedConfirm the supply valve is open and the cartridge is fully seated
Modes switch but water pressure feels weakDebris in the line or a port not alignedFlush the line briefly and recheck cartridge alignment; contact support if it persists
JKC

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