---
product_id: 15436369
title: "Pool Basics 2808PB Calcium Hardness Increaser for Pools, 8-Pound"
brand: "pool blaster"
price: "€ 86.35"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.it/products/15436369-pool-basics-2808pb-calcium-hardness-increaser-for-pools-8-pound
store_origin: IT
region: Italy
---

# 8 lbs of power Corrosion protection Surface safeguard Pool Basics 2808PB Calcium Hardness Increaser for Pools, 8-Pound

**Brand:** pool blaster
**Price:** € 86.35
**Availability:** ❌ Out of Stock

## Summary

> 🏖️ Dive into clarity with Pool Basics!

## Quick Answers

- **What is this?** Pool Basics 2808PB Calcium Hardness Increaser for Pools, 8-Pound by pool blaster
- **How much does it cost?** € 86.35 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/15436369-pool-basics-2808pb-calcium-hardness-increaser-for-pools-8-pound)

## Best For

- pool blaster enthusiasts

## Why This Product

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

## Key Features

- • **Easy Application:** Simple to use for hassle-free maintenance
- • **Surface Perfection:** Prevents staining and etching of your pool's surface
- • **Long-Lasting Results:** Ensures a healthy pool environment for endless enjoyment
- • **Elevate Your Pool Game:** Boosts calcium levels for crystal-clear water
- • **Protect Your Investment:** Safeguards plumbing and heater from corrosion

## Overview

The Pool Basics 2808PB Calcium Hardness Increaser is an 8-pound solution designed to elevate calcium levels in your pool, protecting plumbing and heaters from corrosion while preventing staining and etching on surfaces. Perfect for maintaining a pristine swimming environment.

## Description

Pool Basics Calcium Hardness is used to raise calcium hardness levels when measures drop below the recommended range of 200-400 ppm. If calcium hardness levels are too low the "soft water" will corrode pool equipment, etch pool plaster and may cause metallic stains. To raise the hardness level by approximately 50ppm is necessary to add 6.25 lbs. per 10,000 gallons of pool water.

## Features

- A low calcium hardness level can cause corrosive water
- Protects plumbing and heater
- Prevents the staining or etching of your pool's surface

## Images

![Pool Basics 2808PB Calcium Hardness Increaser for Pools, 8-Pound - Image 1](https://m.media-amazon.com/images/I/41l664Hy0WL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Hardener
  

*by M***. on Reviewed in the United States on September 16, 2013*

Works fine in my hot tub, at a fraction of the cost of small bottle of liquid that I used before.

### ⭐⭐⭐⭐ 







  
  
    Great , works as desribed
  

*by S***T on Reviewed in the United States on June 10, 2015*

works as described, dissolves quick. Good and cheap product.

### ⭐⭐⭐⭐⭐ 







  
  
    Great for spa/hut tub too!
  

*by S***1 on Reviewed in the United States on June 5, 2014*

We recently moved to a new home and it had an outdoor hot tub (aprox. 250 Gal capacity). As I refilled it from outdoor hose I realized that water by default goes thru water softener (not smartest setup) so it was extremely soft. I purchased this Hardness increaser and was a little confused by directions as they were for thousands of gallons of water (for pools). By extermination I found that about 3 cups (not standard cup, but rather cup that's on top of the bottle) increased my spa's hardness just to the perfect level! You do need to dissolve it in bucket of water before pouring into the spa as per instructions.I couldn't bought much smaller quantity, but I also have a pool (which is yet to be filled and opened) so it should work for both :)

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**Shop now:** [https://www.desertcart.it/products/15436369-pool-basics-2808pb-calcium-hardness-increaser-for-pools-8-pound](https://www.desertcart.it/products/15436369-pool-basics-2808pb-calcium-hardness-increaser-for-pools-8-pound)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-11*