---
product_id: 79783648
title: "Robelle 8-Pounds Premium Pool Calcium Up | Pool Calcium Hardness Increaser, 100% Calcium Chloride, 8 ounces raises calcium hardness level 10 ppm per 5,000 gallons"
brand: "robelle"
price: "€ 138.11"
currency: EUR
in_stock: true
reviews_count: 8
category: "Robelle"
url: https://www.desertcart.hr/products/79783648-robelle-8-pounds-premium-pool-calcium-up-pool-calcium-hardness
store_origin: HR
region: Croatia
---

# Rapid hardness boost Precise ppm control Prevents corrosion & etching Robelle 8-Pounds Premium Pool Calcium Up | Pool Calcium Hardness Increaser, 100% Calcium Chloride, 8 ounces raises calcium hardness level 10 ppm per 5,000 gallons

**Brand:** robelle
**Price:** € 138.11
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your pool game—because your oasis deserves the best!

## Quick Answers

- **What is this?** Robelle 8-Pounds Premium Pool Calcium Up | Pool Calcium Hardness Increaser, 100% Calcium Chloride, 8 ounces raises calcium hardness level 10 ppm per 5,000 gallons by robelle
- **How much does it cost?** € 138.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/79783648-robelle-8-pounds-premium-pool-calcium-up-pool-calcium-hardness)

## Best For

- robelle enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pool Pros:** Highly rated with 4.7 stars and thousands of happy pool owners who swear by its effectiveness.
- • **Easy & Safe Application:** Dissolves quickly in water for smooth, even distribution—just pour around the pool perimeter.
- • **Protect Your Investment:** Prevents costly corrosion and surface etching, keeping your pool pristine season after season.
- • **Fast-Acting Calcium Power:** Boost your pool’s calcium hardness by 10 ppm per 8 oz for crystal-clear water in no time.
- • **Tailored Hardness Control:** Ideal calcium range of 200-400 ppm ensures perfect water balance for all pool types.

## Overview

Robelle 8-Pounds Premium Pool Calcium Up is a granular calcium chloride formula designed to rapidly increase and maintain optimal calcium hardness levels (200-400 ppm) in pools. It prevents corrosion and surface etching, ensuring long-lasting pool integrity. Easy to dissolve and apply, it raises calcium hardness by 10 ppm per 8 ounces per 5,000 gallons, making it a must-have for professional-grade pool maintenance.

## Description

This is a dry granular product that increases the total hardness in pool water to the recommended range.Test for calcium hardness with a reliable test kit. The desired range for calcium hardness is as follows: Vinyl Pools: 200-300 ppm, Tile and Exposed Aggregate Pools: 200-400 ppm, Marcite, Fiberglass or Painted Pools: 250-400 ppm. If the calcium hardness tests less than the desired range, add this product according to the included chart. Place this product into a plastic bucket already filled with swimming pool water. Do this in a ration of up to 2 pounds of product per approximate 5-gallon bucket of water. Slowly pour this solution around the perimeter of the swimming pool while the circulating system is operating. In a 10,000 gallon pool, do not add more than 10 pounds of this product per 2 hour period.

Review: Works well and gives results close to what is stated on back - I found that this works well. I've been monitoring my pool for a while and had to add Calcium for the first time after a big bailout. It does require a 5 gal bucket to dissolve it into solution before adding, but it also dissolves quickly in there. After that, you just dump that water-calcium solution along the edge of the pool while going around it. I added 2 lbs initially to see how dramatic the Calcium increase would be and found that it went up close to what the bag said it would after adding and waiting two hours. It is worth the money and is pretty easy to use.
Review: Good product - My order contained 2- 4lb bags of Pool Mate Calcium Increaser. The bags were packaged and taped very well in a box that was then placed in a larger box that wasn't taped so well. The larger box was slightly damaged, and the tape was loose; however, the smaller box containing the product was packaged so well that it remained undamaged. The bags reseal for storage and even have a handle built in to the bag. This stuff works great. It got my Calcium up in the pool quick. Make sure you mix it in water and disperse it in the pool that way. And once you mix it in a container with some water, don't let it sit around. It makes some serious heat. Don't touch this stuff with wet hands. It gets very hot very fast.

## Features

- Calcium chloride for pools
- Rapidly increases total hardness
- Helps prevent corrosion or etching of pools
- Ideal calcium hardness range 200 - 400 ppm
- 8 ounces raises calcium hardness level 10 ppm per 5,000 gallons of water
- Prevents the staining or etching of your pool's surface
- Low calcium hardness level can cause water issues

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CP5S4VO |
| Best Sellers Rank | #25,686 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #92 in Swimming Pool Balancers |
| Brand | Robelle |
| Brand Name | Robelle |
| Customer Reviews | 4.7 out of 5 stars 670 Reviews |
| Global Trade Identification Number | 00034261280802 |
| Included Components | 8-Pounds |
| Item Form | Granular |
| Item Type Name | for Pools |
| Item Weight | 8 Pounds |
| Manufacturer | Robelle |
| Manufacturer Part Number | 2808B |
| Model Number | 2808B |
| Number of Items | 1 |
| Product Benefits | Calcium Increaser |
| UPC | 034261280802 |
| Unit Count | 128.0 Ounce |

## Product Details

- **Brand:** Robelle
- **Item Form:** Granular
- **Item Weight:** 8 Pounds
- **Product Benefits:** Calcium Increaser
- **UPC:** 034261280802

## Images

![Robelle 8-Pounds Premium Pool Calcium Up | Pool Calcium Hardness Increaser, 100% Calcium Chloride, 8 ounces raises calcium hardness level 10 ppm per 5,000 gallons - Image 1](https://m.media-amazon.com/images/I/61VNtOD4enL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well and gives results close to what is stated on back
*by K***N on October 18, 2024*

I found that this works well. I've been monitoring my pool for a while and had to add Calcium for the first time after a big bailout. It does require a 5 gal bucket to dissolve it into solution before adding, but it also dissolves quickly in there. After that, you just dump that water-calcium solution along the edge of the pool while going around it. I added 2 lbs initially to see how dramatic the Calcium increase would be and found that it went up close to what the bag said it would after adding and waiting two hours. It is worth the money and is pretty easy to use.

### ⭐⭐⭐⭐⭐ Good product
*by S***K on July 10, 2025*

My order contained 2- 4lb bags of Pool Mate Calcium Increaser. The bags were packaged and taped very well in a box that was then placed in a larger box that wasn't taped so well. The larger box was slightly damaged, and the tape was loose; however, the smaller box containing the product was packaged so well that it remained undamaged. The bags reseal for storage and even have a handle built in to the bag. This stuff works great. It got my Calcium up in the pool quick. Make sure you mix it in water and disperse it in the pool that way. And once you mix it in a container with some water, don't let it sit around. It makes some serious heat. Don't touch this stuff with wet hands. It gets very hot very fast.

### ⭐⭐⭐⭐⭐ Good product good price
*by D***E on December 1, 2025*

Good product. Good price

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-04*