---
title: "Sodium Bisulfate — $2.1M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/sodium-bisulfate"
last_updated: "2026-08-10T03:15:44.024Z"
locale: en
meta:
description: "Niche score 63/100 · $2.1M/yr market · 262K searches/yr · $41.60 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 63/100 · $2.1M/yr market · 262K searches/yr · $41.60 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Sodium Bisulfate — $2.1M/yr Amazon US Niche (2026) - Flapen"
---
# **sodium bisulfate**
**Launch it**
A $2.1M/yr market growing +399.5% this quarter with returns at 0.4% — clears our launch bar.
Market size 95Growth 100Conversion 100Competition 3Returns 98Price range 90Avg price 95Brand share 0Review moat 48Quality gap 22
**Growth**
**Incredible****+399.5%**
90-day search growth — must beat 0% to launch
**Conversion**
**Incredible****19.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$2.1M**
$2.1M/yr · 262K searches
**Avg price**
**Incredible****$41.60**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.16–$98.28**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****1,669.5**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****97%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, sodium bisulfate is a $2.1M/yr Amazon United States market (262K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Launch it — 63/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sodium bisulfate market data**
- **Units sold / yr**
- **60K–80K**
- avg 12,500–15,000/product
- **Revenue / yr**
- **$2.5M–$3.3M**
- units × avg price
- **Conversion rate**
- **19.6%**
- **Avg BSR**
- **#37**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **91 months**
- **Avg seller age**
- **151 days**
## **Competition & brand share**
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**22**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**97%**
Top 20: 100%
**Open market**
**0%**
- CLOROX Pool&Spa57% - HTH22% - In The Swim15% - Leslie's3% - MAV AquaDoc3%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +399.5% search growth over the last 90 days.
15K10KSpike '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 12.9×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/sodium-bisulfate/trend)
## **Top sodium bisulfate search terms**
- **ph down for pools**64K/yr+730.4%20.9% conv. - **ph decreaser for pool**25K/yr+623.5%18.6% conv. - **sodium bisulfate**31K/yr+151.3%9.2% conv. - **pool ph down**18K/yr+375.5%20.9% conv. - **ph reducer for pool**14K/yr+297.5%19.2% conv. - **dry acid for swimming pools**13K/yr+372.5%7.7% conv. - **sodium bisulfate for pool**11K/yr+512.0%13.7% conv. - **ph decreaser**15K/yr+143.8%10.8% conv. - **ph minus for pools**10K/yr+774.2%14.1% conv. - **clorox ph down**11K/yr+224.7%19.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/sodium-bisulfate/search-terms)
## **Top sodium bisulfate products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$321K30%$643K45%$964K60%$1.3M1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Clorox Pool&Spa Swimming Pool pH Down Lowers pH Protects Against Eye and Skin Irritation 5LB (Pack of 1)**CLOROX Pool&Spa**$9.16**4.7★7,613 rev](https://www.amazon.com/dp/B084GPS6KR) [2**HTH Pool Care pH Down Lowers pH Swimming Pool Chemical 5 Lbs**HTH**$12.90**4.7★613 rev](https://www.amazon.com/dp/B09R82LWY3) [3**In The Swim pH Reducer for Swimming Pools Spas and Hot Tubs - Lowers Alkalinity - Prevents Cloudy Water - Balances Water - 90% Sodium Bisulfate - 50 Pounds**In The Swim**$98.28**4.7★781 rev](https://www.amazon.com/dp/B072F81SMF) [4**In The Swim pH Reducer for Swimming Pools Spas and Hot Tubs - Lowers Alkalinity - Prevents Cloudy Water - Balances Water - 90% Sodium Bisulfate - 30 Pounds**In The Swim**$72.41**4.7★781 rev](https://www.amazon.com/dp/B002WKQ186) [5**Leslies Dry Acid pH Down for Swimming Pools Spas and Hot Tubs - Reduces pH and Total Alkalinity Levels - Safe On All Surfaces - 10 Pounds**Leslie's**$31.25**4.6★112 rev](https://www.amazon.com/dp/B077ZCLVB5)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**MAV AquaDoc pH Down for Pools - 5lb - Sodium Bisulfate pH Decreaser for Pool & Alkalinity Decreaser - Easy Dissolving Dry Acid Pool Chemicals Made in the USA**MAV AquaDoc**$25.59**117 rev1y ago](https://www.amazon.com/dp/B0DZ6MCKSZ) [**Leslies Dry Acid pH Down for Swimming Pools Spas and Hot Tubs - Reduces pH and Total Alkalinity Levels - Safe On All Surfaces - 10 Pounds**Leslie's**$31.25**112 rev2y ago](https://www.amazon.com/dp/B077ZCLVB5) [**HTH Pool Care pH Down Lowers pH Swimming Pool Chemical 5 Lbs**HTH**$12.90**613 rev4y ago](https://www.amazon.com/dp/B09R82LWY3) [**Clorox Pool&Spa Swimming Pool pH Down Lowers pH Protects Against Eye and Skin Irritation 5LB (Pack of 1)**CLOROX Pool&Spa**$9.16**7,613 rev6y ago](https://www.amazon.com/dp/B084GPS6KR) [**In The Swim pH Reducer for Swimming Pools Spas and Hot Tubs - Lowers Alkalinity - Prevents Cloudy Water - Balances Water - 90% Sodium Bisulfate - 50 Pounds**In The Swim**$98.28**781 rev8y ago](https://www.amazon.com/dp/B072F81SMF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HTH Pool Care pH Down Lowers pH Swimming Pool Chemical 5 Lbs**HTH**$12.90**4.7★**▲ 33%**](https://www.amazon.com/dp/B09R82LWY3) [**Leslies Dry Acid pH Down for Swimming Pools Spas and Hot Tubs - Reduces pH and Total Alkalinity Levels - Safe On All Surfaces - 10 Pounds**Leslie's**$31.25**4.6★**▲ 27%**](https://www.amazon.com/dp/B077ZCLVB5) [**MAV AquaDoc pH Down for Pools - 5lb - Sodium Bisulfate pH Decreaser for Pool & Alkalinity Decreaser - Easy Dissolving Dry Acid Pool Chemicals Made in the USA**MAV AquaDoc**$25.59**4.5★**— 9%**](https://www.amazon.com/dp/B0DZ6MCKSZ) [**In The Swim pH Reducer for Swimming Pools Spas and Hot Tubs - Lowers Alkalinity - Prevents Cloudy Water - Balances Water - 90% Sodium Bisulfate - 50 Pounds**In The Swim**$98.28**4.7★**— 0%**](https://www.amazon.com/dp/B072F81SMF) [**In The Swim pH Reducer for Swimming Pools Spas and Hot Tubs - Lowers Alkalinity - Prevents Cloudy Water - Balances Water - 90% Sodium Bisulfate - 30 Pounds**In The Swim**$72.41**4.7★**— 3%**](https://www.amazon.com/dp/B002WKQ186)
**~~View all trending →~~**
## **What buyers say about sodium bisulfate**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**34%
*“it was about as cheap as I could find at the time”*
**Advertised Vs Actual Product**19%
*“it does the job”*
**Ease Of Use**16%
*“So easy to use”*
**Quality-Overall**12%
*“Overall, no issues”*
**Filtration**4%
*“Pool water PH reducer”*
**Water Resistance**4%
*“Really helped with the pool water”*
**Instructions/User Manual/Troubleshooting**4%
*“The instructions were easy to follow”*
**Pureness**2%
*“helps keep the water clear”*
**Durability**1%
*“so the container lasts longer than expected”*
**Strength**1%
*“the packaging was sturdy”*
### **What buyers complain about **
**Value For Money**40%
*“Not as good for the $as Muric Acid”*
**Functionality-Overall**40%
*“It doesn't work, period”*
**Storage Capacity**10%
*“Its harder to store than the bags if you have limited space”*
### **Top return reasons **
**Leak-Proof**27%
**Functionality-Overall**22%
**Value For Money**20%
**Advertised Vs Actual Product**13%
**Size-Overall**5%
**Contamination**4%
**Stitch/Finish/Polish**1%
**Measurement/Reading Accuracy**1%
**Defective Material/Parts**1%
**Assembly/Installation**1%
## **Common questions**
- **Is sodium bisulfate profitable to sell on Amazon United States?**
- The niche generates $2.1M/yr across 6 tracked products. 90-day search growth is +399.5%. Flapen's verdict: Launch it (63/100).
- **How competitive is the sodium bisulfate niche?**
- 5 brands and 22 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in sodium bisulfate?**
- Top complaints mined from reviews: Value For Money, Functionality-Overall, Storage Capacity. The return rate is 0.4%.
- **When does demand for sodium bisulfate peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 12.9× the quietest.
- **What does it cost to enter the sodium bisulfate niche?**
- Listings span $9.16–$98.28; the average listing price is $41.60 (sweet spot $15–$100). The average incumbent carries 1,670 reviews — the moat a new listing must climb.
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