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United States Pumice Company
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Large Pumice Stone (pool blok) Front
United States Pumice Company
Professional Choice

Large Pumice Stone (pool blok)

$14.88
In Stock Locally
Quantity
1
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Product Overview

A proven stability attachment for standard 1-1/4 inch telescopic poles during in-water maintenance and swim instruction.

Manufactured by United States Pumice Company under the pool blok label, this large stone-shaped platform is molded from high-density EVA foam to fit standard 1-1/4 inch telescopic poles. It functions as a buoyant foot and base support, giving technicians and instructors a secure, non-slip textured footing in water depths from 3 to 5 feet while reducing upper body fatigue during extended pool maintenance sessions.

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Why Pool Pros Trust This

Benefits & What Makes It Different

Standard 1-1/4" Pole Fit

Slides directly onto standard 1.25-inch diameter aluminum telescopic poles with zero tools required for quick friction-fit attachment.

High-Density EVA Foam

Constructed from 100% closed-cell EVA foam engineered to resist routine sanitizers up to 5 ppm chlorine and prolonged UV exposure.

Textured Stability Platform

Features a stone-molded textured surface that provides solid foot and pole traction on slick plaster, tile, and vinyl surfaces.

Compatibility

  • Fits standard 1-1/4 inch (1.25 in) telescopic poles
  • Safe for gunite, plaster, fiberglass, and vinyl pool surfaces

When To Use This

Stabilizing poles during waterline tile brushingSwim instructor platform support in 3-5 ft depthsCoping and grout line scrubbing from inside the pool

Pro Tip

Slide the blok roughly 12 to 18 inches up from the bottom of your 1-1/4 inch pole so the base rests firmly on the pool floor while keeping your hands at an ergonomic 90-degree working angle.

Common Questions & Instructions

What pole diameter does the Large Pumice Stone Pool Blok fit?

It is engineered to fit standard 1-1/4 inch (1.25-inch) outside diameter aluminum telescopic pool service poles without requiring locking pins or mounting hardware.

What water depths is this pool blok stability platform designed for?

Technicians and instructors typically position the blok along the pole for shallow water depths ranging between 3 and 5 feet, adjusting the height along the pole to match waist level.

Can the EVA foam withstand routine pool chlorine concentrations?

Yes, the dense closed-cell EVA foam formulation is rated for regular water contact with sanitizer levels between 1.0 and 5.0 ppm free chlorine without cracking or losing buoyancy.

Same-Day DFW Delivery

Delivered today to your DFW neighborhood

Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.

Free checklist

The DFW month-by-month pool checklist

What it covers (12 months · 76 tasks · 12 marked critical):

  • Freeze nights (January and December): keep the pump running, and what to drain if the power goes out
  • The March opening: test everything, brush, shock, then balance alkalinity, pH and calcium
  • Summer: testing two or three times a week, the weekly shock, and what to do after rain or a party
  • Fall leaves, and easing the chemistry down for winter
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