---
product_id: 122142518
title: "Solvay Bicar Sodium Bicarbonate Alkalinity Up, 50 lbs."
brand: "in the swim"
price: "$752.91"
currency: USD
in_stock: true
reviews_count: 8
category: "In The Swim"
url: https://www.desertcart.ec/products/122142518-solvay-bicar-sodium-bicarbonate-alkalinity-up-50-lbs
store_origin: EC
region: Ecuador
---

# Pool, spa & hot tub safe Stabilizes pH & chlorine Precise alkalinity boost Solvay Bicar Sodium Bicarbonate Alkalinity Up, 50 lbs.

**Brand:** in the swim
**Price:** $752.91
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your pool perfectly balanced and summer-ready—because your water deserves the best!

## Quick Answers

- **What is this?** Solvay Bicar Sodium Bicarbonate Alkalinity Up, 50 lbs. by in the swim
- **How much does it cost?** $752.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/122142518-solvay-bicar-sodium-bicarbonate-alkalinity-up-50-lbs)

## Best For

- in the swim enthusiasts

## Why This Product

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

## Key Features

- • **Granular Ease of Use:** Granular form ensures quick, mess-free application and fast dissolution.
- • **Fast Swim-Ready Formula:** Swim-ready in just 4 hours post-application—get back to your summer vibes without delay.
- • **Universal Compatibility:** Safe and effective for pools, spas, and hot tubs—one solution for all your water needs.
- • **Bulk Supply, Bulk Savings:** 50 lbs of premium sodium bicarbonate means fewer trips and better value for serious pool pros.
- • **Precision Alkalinity Control:** Raises alkalinity by 10 ppm per 1.5 lbs per 10,000 gallons for perfectly balanced water.

## Overview

In The Swim Solvay Bicar Sodium Bicarbonate is a 50 lb granular alkalinity increaser designed to stabilize pH and chlorine levels in pools, spas, and hot tubs. It raises alkalinity by approximately 10 ppm per 1.5 pounds per 10,000 gallons, ensuring safe, balanced, and refreshing water. Easy to apply and fast-acting, it helps prevent corrosive water and scaling, making it a must-have for maintaining optimal water chemistry.

## Description

Striking the proper pH balance in your pool water is critical for safe and enjoyable swimming which is why many pool owners may find the need to use an alk increaser from time to time. Generally speaking, you'll need to increase pool alk whenever the pH drops below 7.4 or when alk levels drop below 80ppm. Ideally, you'll always want alk to range between 80 and 120ppm and should you dip below this you'll need to use a pool alk increaser. When alk is too high, your pool water is equally unsafe and scales will begin to form on your pool and pool equipment. Granular alk increaser can help to prevent these problems by stabilizing the pool pH and ensuring that your pool is safe for swimming. More importantly, maintaining a balanced pH by effectively administering an alk increaser also ensures that your pool water is refreshing and enjoyable on even the hottest summer day. The vast majority of alk increaser products are made from sodium bicarbonate which is a safe substance. Depending on the size of your pool you will need to carefully measure your alk increaser in order to accurately and effectively increase pool alk. Essentially, alk increaser acts as a buffer and improves the ability of your pool water to resist pH changes. When your alk level drops below 80ppm, pH will begin to fluctuate dangerously causing water to become acidic and corrosive.

Review: Good bulk supply of Sodium Bicarbonate for pool alkalinity - I have purchased this 50 lb bag many times (over 10) for pool Alkalinity balancing since 2022. I store it inside my house, in a Vestil 3.5G plastic PAIL-SCR-35-W container (ASIN: B0052P26YG) in order to keep it away from humid air. Not all of the 50 lbs fits in this 3.5G container, so the remainder (maybe 8-9 lbs) I put in an outside container that I grab from for the pool. Storing it this way I have never had an issue with humidity affecting the product. This Sodium Bicarbonate product works great. It raises the alkalinity as much as I would expect (performs as expected). The price is one of the lowest I can find for this size (delivered), making it a great deal when compared to other options for raising pool alkalinity. Will continue to purchase.
Review: A Safer Alternative To More Dangerous Chemicals - The 50 lbs of baking soda will fit in a 5 gallon hard plastic bucket which I believe will make it easier to store and keep the baking soda safer than just leaving it in the bag. I also use a hard plastic scoop to get the baking soda out of the bucket. I am satisfied that the product is less expensive and safer to use than other chemical alternatives. My first use helped bring my PH and alkalinity levels into the “okay” range. The baking soda dissipates quickly when it is dispersed into the pool water.

## Features

- Use when total alk. drops below 80 ppm.
- Keeps your pH and Chlorine from becoming unstable Granular form, easier to apply into your water
- Compatible with pool, spa, and hot tub
- Dosage: 1-1/2 pounds per 10,000 gallons will raise the alk. level by approximately 10 ppm
- Retest water after every dosage added, you can swim after 4 hours of circulation 50 lb bag.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KRH14W5 |
| Best Sellers Rank | #8,266 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #35 in Swimming Pool Balancers |
| Brand | In The Swim |
| Customer Reviews | 4.7 4.7 out of 5 stars (927) |
| Item Form | Granular |
| Item Weight | 51 pounds |
| Item model number | 81292 |
| Manufacturer | In The Swim |
| Number of Items | 1 |
| Product Benefits | Alkalinity Increaser |
| Product Dimensions | 19.5 x 14.6 x 3 inches |
| UPC | 815100025538 |
| Unit Count | 800 Ounce |

## Product Details

- **Brand:** In The Swim
- **Item Form:** Granular
- **Item Weight:** 51 Pounds
- **Product Benefits:** Alkalinity Increaser
- **UPC:** 815100025538

## Images

![Solvay Bicar Sodium Bicarbonate Alkalinity Up, 50 lbs. - Image 1](https://m.media-amazon.com/images/I/51oBKx9QHdL.jpg)

## Questions & Answers

**Q: Is the same product for alkalinity increaser and/or ph increaser  ?**
A: No.  Alkalinity Increaser (which is baking soda or sodium bicarbonate) is not the same as pH Increaser.  Those are different products.  If you have a good way of aerating your water, i.e., creating lots of bubbles (like in a hot tub), you can actually increase pH through aeration.  In a hot tub, it is more likely that you would need pH Decreaser if you use the jets often. I rarely use pH Increaser in my pool. More often than not I need to decrease the pH level. You can use muriatic acid (sold in hardware stores) to accomplish that.

**Q: How does this bag get shipped so it does not arrive torn?  Is the bag placed in a box?**
A: in a box, yes

**Q: Is the 50 lb bag powder or granular?**
A: I use plain old Arm & Hammer baking soda a powder. That is what will increase Alkalinity.

**Q: can this be used with laundry?**
A: Yes, This chemical may be used in laundry, mostly to remove stains: create a paste with small amount of water and scrub on tough stains.
It's good on colors, hot or cold water, and as a disinfectant.
For tough dirty laundry you may need a soaping detergent as well..... good luck.....

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good bulk supply of Sodium Bicarbonate for pool alkalinity
*by M***N on October 15, 2025*

I have purchased this 50 lb bag many times (over 10) for pool Alkalinity balancing since 2022. I store it inside my house, in a Vestil 3.5G plastic PAIL-SCR-35-W container (ASIN: B0052P26YG) in order to keep it away from humid air. Not all of the 50 lbs fits in this 3.5G container, so the remainder (maybe 8-9 lbs) I put in an outside container that I grab from for the pool. Storing it this way I have never had an issue with humidity affecting the product. This Sodium Bicarbonate product works great. It raises the alkalinity as much as I would expect (performs as expected). The price is one of the lowest I can find for this size (delivered), making it a great deal when compared to other options for raising pool alkalinity. Will continue to purchase.

### ⭐⭐⭐⭐⭐ A Safer Alternative To More Dangerous Chemicals
*by C***N on October 26, 2025*

The 50 lbs of baking soda will fit in a 5 gallon hard plastic bucket which I believe will make it easier to store and keep the baking soda safer than just leaving it in the bag. I also use a hard plastic scoop to get the baking soda out of the bucket. I am satisfied that the product is less expensive and safer to use than other chemical alternatives. My first use helped bring my PH and alkalinity levels into the “okay” range. The baking soda dissipates quickly when it is dispersed into the pool water.

### ⭐⭐⭐⭐⭐ Good Quality Baking Soda - Don't Waste Time with Arm & Hammer
*by R***2 on October 27, 2025*

It's.... baking soda. But it is good baking soda. Solved my pH problem. Make sure you break it up or use a sifter. Dissolves quickly.

## Frequently Bought Together

- In The Swim Solvay Bicar Sodium Bicarbonate Alkalinity Up, 50 lbs. 81292
- In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds
- Drytec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 1-Pound, 24-Pack

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-08*