---
product_id: 56942746
title: "Clearwater Scale and Stain Controller Treatment for Filter Pumps, Hot Tubs, Spas and Pools, 1 Litre, White"
brand: "clearwater"
price: "229 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Clearwater"
url: https://www.desertcart.pl/products/56942746-clearwater-scale-and-stain-controller-treatment-for-filter-pumps-hot
store_origin: PL
region: Poland
---

# 1 Litre concentrated formula Prolongs filter pump lifespan BISHTA approved & trusted Clearwater Scale and Stain Controller Treatment for Filter Pumps, Hot Tubs, Spas and Pools, 1 Litre, White

**Brand:** clearwater
**Price:** 229 zł
**Availability:** ✅ In Stock

## Summary

> 🛁 Keep your pool pristine, your filter flawless, and your summer endless!

## Quick Answers

- **What is this?** Clearwater Scale and Stain Controller Treatment for Filter Pumps, Hot Tubs, Spas and Pools, 1 Litre, White by clearwater
- **How much does it cost?** 229 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/56942746-clearwater-scale-and-stain-controller-treatment-for-filter-pumps-hot)

## Best For

- clearwater enthusiasts

## Why This Product

- Trusted clearwater brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by the Pros:** Recommended by Bestway and Lay-Z-Spa for reliable, high-quality water treatment.
- • **Effortless Maintenance:** Simple, clear instructions make pool and spa care hassle-free and quick.
- • **Long-Lasting Protection:** Keeps your hot tub and pool filters pristine, extending their operational life.
- • **Scale-Free, Stress-Free:** Protect your filter pump from damaging hard water scale and metallic stains.
- • **Value Meets Performance:** High-performing formula with excellent customer satisfaction and top rankings.

## Overview

Clearwater Scale and Stain Controller is a 1-litre, BISHTA-approved treatment designed to prevent and remove scale and stains caused by hard water and metallic compounds in pools, hot tubs, and spas. Trusted by leading brands, it extends the lifespan of filter pumps with an easy-to-use formula, ensuring crystal-clear water and hassle-free maintenance.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Easy and reliable to use. - Exactly what I needed to keep the pool clean. Hassle free and easy to use, instructions are clear and simple to follow. The spa has been kept in tip top clean condition as a result. Reliable quality of Clearwater brand with excellent value for money.
Review: Excellent performance - Reliable brand. High performing scale and stain control liquid.

## Features

- Causes serious eye damage.
- Scale occurs in hard water areas which can cause serious damage and reduce the lifespan of your filter pump
- ClearWater scale and stain controller helps protect your pump by removing scale and controlling stains caused by hard water and metallic compounds
- Keep your hot tub or pool filter in pristine condition, prevent the build up of scale and prolong the life of your filter
- Scale and stain remover is simple to use thanks to the easy-to-follow instructions printed on the bottle
- Clearwater is a BISHTA approved member and recommended by brands such as Bestway and Lay-Z-Spa for reliable, safe and high-quality water treatment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IN1N1NG |
| Best Sellers Rank | 4,014 in Garden ( See Top 100 in Garden ) 16 in Pool & Hot Tub Cleaning Products |
| Customer Reviews | 4.6 4.6 out of 5 stars (792) |
| Date First Available | 24 Feb. 2014 |
| Department | Unisex |
| Item model number | CH0021 |
| Manufacturer | ClearWater |
| Part number | CH0021 |
| Product Dimensions | 16 x 0.99 x 24 cm; 40.82 g |
| Seasons | Evergreen |

## Product Details

- **Brand:** Clearwater
- **Item form:** Liquid
- **Item weight:** 41 g
- **Number of items:** 1
- **Product benefits:** Prevents Scales, Controls Stains

## Images

![Clearwater Scale and Stain Controller Treatment for Filter Pumps, Hot Tubs, Spas and Pools, 1 Litre, White - Image 1](https://m.media-amazon.com/images/I/51iWwYrX59L.jpg)

## Questions & Answers

**Q: Can lazy spa be used after addition of this chemical?**
A: No, you must test the free chlorine levels first! What we do is this...test the water before addition on chlorine, as long as it’s between 5-8 ppm then use the spa as normal and do not add any more. Once you have used the spa add 7g or one tablet to the frog and leave in water. You’ll need about 1/2 tablets over 24/36 hours depending on how hot the water is. Always take the frog out when in the spa. The chlorine levels will drop with heat, sunlight and people using the water. If it’s cloudy use flocculant not more chlorine! Hope that helps. You should never add chemical and use the spa, you risk reactions or Burns. The spa I have I run at 3ppm as it’s just for me, my kid had friends over I raise it to 5ppm because there are more people on it. If you over dose the levels remove water and refill with fresh and start again

**Q: Do u just pour this in hot tub and leave it to clean pump  or do u have to buy out eles with it  or does this just work on it’s own**
A: I poured it on the stains then tried to scrub off but it didn't work for me. I ended up using diluted bleach with a garden sprayer.

**Q: How do you use this?  My hot tub is in use and chlorinated.  Is this poured into the chlorinated water?**
A: Just add the amount calculated on the label straight into the spa (I use a 60ml syringe its easier) and when a weekly dose, did wonders to mine was getting cloudy water due to very hard water and the reaction with Alkalinity. Since using it crystal clear water.

**Q: My pool is in use and has limescale, can i use this in addition to multi tablets to remove the limescale?**
A: We use it in our hot tub normally once in a while but after we have got out. We treat it like any other chemical add and make sure there is plenty of time after adding it before using the tub again

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy and reliable to use.
*by A***R on 26 November 2025*

Exactly what I needed to keep the pool clean. Hassle free and easy to use, instructions are clear and simple to follow. The spa has been kept in tip top clean condition as a result. Reliable quality of Clearwater brand with excellent value for money.

### ⭐⭐⭐⭐⭐ Excellent performance
*by A***N on 30 November 2025*

Reliable brand. High performing scale and stain control liquid.

### ⭐⭐⭐⭐ Easy to use
*by M***R on 30 August 2025*

Easy to use

## Frequently Bought Together

- Clearwater Scale and Stain Controller Treatment for Filter Pumps, Hot Tubs, Spas and Pools, 1 Litre, White
- Clearwater Water Clarifier for Hot tub Spa and Swimming Water Treatment for Pristine Crystal Clear Water, 1 Litre
- Clearwater Foam Remover for Swimming Pool and Spa Treatment, 1 Litre

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-18*