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How do I lock Grout Brush Pole?Updated 3 days ago

TL;DR: Extend Grout Brush Pole to your preferred length, then twist the grey and green pole sections in opposite directions until they tighten. A quarter-turn is usually enough. The small green collar is a spacer, not the lock.


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Koh Grout Brush Pole in use
Koh Grout Brush Pole detail

How do I lock Grout Brush Pole?

Extend Grout Brush Pole to your preferred length. Hold the grey section with one hand and the green section above it with the other, then twist them in opposite directions until you feel them tighten. A quarter-turn is usually enough. You are screwing an internal thread together, and that thread is the actual lock. The small green collar under the lock and unlock sticker is a spacer, not the mechanism, so spinning it will not tighten anything. To check it has held, give the pole a gentle push downwards. If it does not slide, it is locked.

Three steps to lock it

1

Extend. Pull the pole out to your preferred length.

2

Grip both sections. Hold the grey section with one hand and the green section above it with the other.

3

Twist opposite ways. A quarter-turn is usually enough, until you feel the internal thread tighten.

⚠ The green collar is not the lock

The small green ring under the lock and unlock sticker is a spacer, not the locking mechanism. Spinning it will not tighten the pole. Twist the pole sections themselves.

Spacer only Twist the sections

✓ The push test

Give the pole a gentle push downwards. If it does not slide, it is locked. Still slipping? Unscrew, realign the sections, then twist again until snug.

Gentle push test Realign if needed

Why will my Grout Brush Pole not lock?

There are two common culprits. The first is twisting the green collar instead of the pole sections themselves. The second is debris in the internal metal thread. Wipe the thread clean with a dry cloth, line the grey and green pole sections up directly rather than the collar, then twist them in opposite directions until snug. The arrow sticker shows the direction of twist, not the part to turn.

⚠ The thread feels stripped

Wipe dust, grit or cleaning residue off the internal metal thread with a dry cloth, then try again. Debris in the thread is the most common cause of a loose feel.

Wipe the thread Dry cloth only

⚠ The sticker points at the collar

The lock and unlock arrow sticker sits just above the green collar to show the direction of twist. Twist the pole sections themselves, not the collar.

Arrow = direction Not the collar

Clipping the brush head on is a separate step. See Grout Brush Pole assembly: how to put together


Koh Grout Brush Pole

Grout Brush Pole

Twist-lock telescoping handle with an adjustable height. Unscrews for easy storage.

Koh Grout Brush

Grout Brush

Clips on for floor jobs, pops off for detail work by hand.

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Last reviewed: August 2026 · Koh UK

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