---
product_id: 19290209
title: "pH Increaser for Hot Tub & Pool | Pure Soda Ash, Sodium Carbonate | 15 lb"
brand: "fdc"
price: "₨70261"
currency: LKR
in_stock: true
reviews_count: 13
category: "Fdc"
url: https://www.desertcart.lk/products/19290209-ph-increaser-for-hot-tub-and-pool-pure-soda-ash
store_origin: LK
region: Sri Lanka
---

# Non-corrosive granular formula Raises pH from <7.2 precisely Protects equipment & boosts chlorine pH Increaser for Hot Tub & Pool | Pure Soda Ash, Sodium Carbonate | 15 lb

**Brand:** fdc
**Price:** ₨70261
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your pool game with flawless pH balance—because your swim deserves the best!

## Quick Answers

- **What is this?** pH Increaser for Hot Tub & Pool | Pure Soda Ash, Sodium Carbonate | 15 lb by fdc
- **How much does it cost?** ₨70261 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/19290209-ph-increaser-for-hot-tub-and-pool-pure-soda-ash)

## Best For

- fdc enthusiasts

## Why This Product

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

## Key Features

- • **Equipment Guardian:** Prevents corrosion, plaster etching, and discoloration to extend your pool’s lifespan.
- • **Gentle Yet Powerful:** Non-corrosive soda ash formula ensures safe handling without harsh chemical splashes.
- • **Precision pH Control:** Effortlessly restore your pool’s ideal pH balance for crystal-clear water.
- • **Chlorine Supercharger:** Enhances chlorine effectiveness to keep your pool hygienic and irritation-free.
- • **Risk-Free Satisfaction:** Backed by a 30-day money-back guarantee—because your perfect swim matters.

## Overview

This 15 lb Pure Soda Ash (Sodium Carbonate) pH Increaser is a granular, non-corrosive formula designed to raise pool and hot tub pH levels below 7.2. It stabilizes chlorine, prevents equipment corrosion, and protects pool surfaces, ensuring safer, clearer water. Easy to use with a direct pour method and backed by a 30-day money-back guarantee.

## Description

If your pool’s pH is too low, use Pool & Spa pH Increaser. Also known as sodium carbonate or soda ash, Pool & Spa pH Incraeaser raises low pH and restores ideal swimming conditions. Pool & Spa pH Increaser will stop corrosion of pool equipment, increase the effectiveness of chlorine and other pool chemicals, prevent skin and eye irritation for swimmers, and stop etching and deterioration of plaster and grout. Rest assured that this product is 100% sodium carbonate/soda ash. We value our customers and we stand behind all of our products 100% with no questions asked. If you are not pleased, call or email us with your order number, and we will reimburse you in full. Directions: Using the chart on the label, measure and pour Pool & Spa pH Increaser directly into the pool and wait for the pH to rise. Test pool pH again after five or six hours

Review: Works well - Great product and works well
Review: Good value - I use this for my household water treatment. It's the same stuff but easier to handle (bucket) than the bag I get from the hardware store. Additionally, its the right amount - I treat once per year and a bag is two years worth. After a year soda ash in a bag is rock solid. Plus you get a free bucket.

## Features

- RESTORE IDEAL SWIMMING CONDITIONS: Pool & Spa pH Increaser raises pH in pool water. Also known as sodium carbonate or soda ash, this product will raise pH levels under 7.2.
- NON-CORROSIVE GRANULAR FORMULA: Use soda ash instead of using splashy chemicals to fix pool pH. Simply measure and pour into your pool for lightning-fast pH adjustment.
- INCREASES CHLORINE EFFECTIVENESS. Sodium carbonate stabilizes chlorine and other pool chemicals, stopping skin and eye irritation for swimmers.
- PROTECTS YOUR POOL EQUIPMENT AND LINING: Pool & Spa pH Increaser stops corrosion of equipment, etching of plaster, and pool discoloration from dissolved materials.
- 30-DAY MONEY-BACK GUARANTEE: We value our customers, and we stand behind all of our products, 100% with no questions asked. If you are not pleased, call or email us with your order number and we will reimburse you in full.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B015P3XKWG |
| Best Sellers Rank | #59,021 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #119 in Swimming Pool Balancers |
| Brand | FDC |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,064) |
| Is Discontinued By Manufacturer | No |
| Item Form | Granular |
| Item Weight | 15.2 pounds |
| Item model number | UI-JB6B-TMFT |
| Manufacturer | FDC |
| Number of Items | 1 |
| Product Benefits | Corrosion,Ph Increaser |
| Product Dimensions | 10 x 9 x 9 inches |
| UPC | 853908006205 |
| Unit Count | 240.0 Ounce |

## Product Details

- **Brand:** FDC
- **Item Form:** Granular
- **Item Weight:** 15.2 Pounds
- **Product Benefits:** Corrosion,Ph Increaser
- **UPC:** 853908006205

## Images

![pH Increaser for Hot Tub & Pool | Pure Soda Ash, Sodium Carbonate | 15 lb - Image 1](https://m.media-amazon.com/images/I/71KpgqhdEdL.jpg)

## Questions & Answers

**Q: This is pure sodium carbonate? Also know as soda ash, or washing soda?**
A: Yes, 100% Sodium Carbonate

**Q: Is this the same as arm and hammer super washing soda?**
A: Yes.

**Q: How much of this product would you use in a 300 gallon hot tub?**
A: The recommended starting dose vary depending on volume and current PH level, instructions read to use 1 pound per 10,000 gallons.
Being its for a much smaller hot tub you will be using ounces as opposed to pounds. Start with 1/2 ounce, keep an eye on the PH and add 1/2 more every few hours as needed until you get to the desirable PH.

**Q: Do you have the msds on this? is it sodium hydroxide aka lye?**
A: This product is 100% soda ash aka sodium bicarbonate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by F***R on July 29, 2025*

Great product and works well

### ⭐⭐⭐⭐⭐ Good value
*by Y***R on May 12, 2024*

I use this for my household water treatment. It's the same stuff but easier to handle (bucket) than the bag I get from the hardware store. Additionally, its the right amount - I treat once per year and a bag is two years worth. After a year soda ash in a bag is rock solid. Plus you get a free bucket.

### ⭐⭐⭐⭐ Good for PH increaser
*by L***Z on June 25, 2023*

I’m an inexperienced pool owner and It is working! Got those test strips as my guidance. Already used half of the tub. The PH is almost right! Each lbs. takes a day to clear the cloudy pool water even in deep end! But it will clear it up!

## Frequently Bought Together

- pH Increaser for Hot Tub & Pool | Pure Soda Ash, Sodium Carbonate | 15 lb
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)
- Clorox Pool & Spa Swimming Pool Alkalinity Increaser, Keeps pH Balanced, 16LB (Pack of 1)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.lk/products/19290209-ph-increaser-for-hot-tub-and-pool-pure-soda-ash](https://www.desertcart.lk/products/19290209-ph-increaser-for-hot-tub-and-pool-pure-soda-ash)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-31*