algaecide for swimming pools
Worth a lookShows demand growing >1,000% this quarter, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Growth
Incredible>1,000%90-day search growth — must beat 0% to launch
Conversion
Incredible22.2%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Market size
Okay£238K£238K/yr · 96K searches
Avg price
Okay£11.20avg listing price — sweet spot $15–$100
Review moat
Okay3,146.43avg incumbent reviews — the moat a new listing must climb
Price range
Bad£6.83–£15.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad94%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, algaecide for swimming pools is a £238K/yr Amazon United Kingdom market (96K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 52/100.
Data updated Jul 26, 2026 · scored weekly · How we score niches
algaecide for swimming pools market data
- Units sold / yr
- 15K–20K
- avg 3,000–4,000/product
- Revenue / yr
- £168K–£224K
- units × avg price
- Conversion rate
- 22.2%
- Avg BSR
- #5
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 86%
- Out of stock
- 0.0%
- Avg brand age
- 56 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products capture 94% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 flat
Sellers
11
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
94%
Top 20: 100%
Open market
0%
- Clearwater61%
- Pro-Kleen16%
- Dirtbusters13%
- SUDS-ONLINE7%
- Cleenly4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — >1,000% search growth over the last 90 days.Peak months: Jun, Jul, Aug · busiest ÷ quietest = 116.4×
Top algaecide for swimming pools search terms
- algaecide for swimming pools45K/yr
- pool algaecide12K/yr
- algaecide10K/yr
- clearwater algaecide8K/yr
- pool algae remover8K/yr
- swimming pool algaecide4K/yr
- algaecide for swimming pool2K/yr
- anti algae swimming pool treatment2K/yr
- clear water algaecide2K/yr
- algaecide for pool2K/yr
Top algaecide for swimming pools 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.
All 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Clearwater Algaecide Algae Remover for Swimming Pool and Spa Hot Tub Water Treatment Highly Effective Formula 1 Litre
Clearwater£8.574.5★7,492 rev
Pro-Kleen Pool Algaecide Algae Remover and Cleaner for Swimming Pools and Hot Tubs 5L Removes & Prevents Growth Treatment Long-Lasting Professional Formula For Clear Water
Pro-Kleen£15.394.4★1,536 rev
Dirtbusters Pro Pool Algaecide (5L) For Swimming Pools & Hot Tubs Concentrate Powerful Algae Remover & Prevention Treatment For Clean Crystal Clear Water
Dirtbusters£15.574.4★357 rev
Clearwater Water Clarifier for Hot tub Spa and Swimming Water Treatment for Pristine Crystal Clear Water (1L)
Clearwater£8.414.5★10,632 rev
SUDS-ONLINE Algaecide For Simming Pools Spas Hot Tubs (500ml)
SUDS-ONLINE£6.834.4★722 rev
Newest
by launch dateDirtbusters Pro Pool Algaecide (5L) For Swimming Pools & Hot Tubs Concentrate Powerful Algae Remover & Prevention Treatment For Clean Crystal Clear Water
Dirtbusters£15.57357 rev
Cleenly Pool Algae Remover - Removes & Prevents the Growth of Green in Water - Super Concentration and Long Lasting 5L
Cleenly£15.24564 rev
SUDS-ONLINE Algaecide For Simming Pools Spas Hot Tubs (500ml)
SUDS-ONLINE£6.83722 rev
SUDS-ONLINE Algaecide For Simming Pools Spas Hot Tubs (1L)
SUDS-ONLINE£8.40722 rev
Pro-Kleen Pool Algaecide Algae Remover and Cleaner for Swimming Pools and Hot Tubs 5L Removes & Prevents Growth Treatment Long-Lasting Professional Formula For Clear Water
Pro-Kleen£15.391,536 rev
Trending
90-day click momentumSUDS-ONLINE Algaecide For Simming Pools Spas Hot Tubs (1L)
SUDS-ONLINE£8.404.4★
Clearwater Water Clarifier for Hot tub Spa and Swimming Water Treatment for Pristine Crystal Clear Water (1L)
Clearwater£8.414.5★
Pro-Kleen Pool Algaecide Algae Remover and Cleaner for Swimming Pools and Hot Tubs 5L Removes & Prevents Growth Treatment Long-Lasting Professional Formula For Clear Water
Pro-Kleen£15.394.4★
Cleenly Pool Algae Remover - Removes & Prevents the Growth of Green in Water - Super Concentration and Long Lasting 5L
Cleenly£15.244.4★
SUDS-ONLINE Algaecide For Simming Pools Spas Hot Tubs (500ml)
SUDS-ONLINE£6.834.4★
What buyers say about algaecide for swimming pools
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality”
“Great value product for hot tubs, et cetera”
“Does everything it says”
“This is a very concentrated product”
“Strong”
“The bottle feels very strong and durable”
“Very easy to use with clear instructions”
“Very easy to use with clear instructions”
“Ideal for a 10 foot pool that is mostly rain water”
“Child safe lid so the kids or pets cant accidentally open it”
What buyers complain about
“Did not find it effective”
“Don't waste your money or time”
“if anything the water is cloudier than before putting in”
“Not the best”
“Not working,followed instructions and nothing changed”
“Clogs filter cartridges”
“I found it odd when it didn't have a chlorine smell”
“Good products from Clearwater however this was leaking”
“Upped the dose and treated again and still nothing even with a filter”
“Pool is no longer green”
Top return reasons
Common questions
- Is algaecide for swimming pools profitable to sell on Amazon United Kingdom?
- The niche generates £238K/yr across 7 tracked products. 90-day search growth is >1,000%. Flapen's verdict: Worth a look (52/100).
- How competitive is the algaecide for swimming pools niche?
- 5 brands and 11 sellers compete. The top 5 products take 94% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in algaecide for swimming pools?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Water Resistance. The return rate is 0.1%.
- When does demand for algaecide for swimming pools peak?
- Demand peaks in Jun–Jul–Aug; the busiest month runs 116.4× the quietest.
- What does it cost to enter the algaecide for swimming pools niche?
- Listings span £6.83–£15.57; the average listing price is £11.20 (sweet spot $15–$100). The average incumbent carries 3,146 reviews — the moat a new listing must climb.