Ph Minus
MaybeSearch demand grew +703.8% this quarter. But shoppers spend an estimated $98K a year here, so Ph Minus is a Maybe.
- Flapen Score
- 59 / 100Top 20% of 5,777 Home & Garden niches · +8 vs the category median of 5159
- Market size
- £98K/yr51K searches / yr
- 90-day growth
- +703.8%search demand this quarter
- Competition
- 61%top-5 click share · 11 brands · 25 sellers
Flapen Score
Ph Minus against its category
The dotted line is the Home & Garden average. Past it, Ph Minus is stronger. Inside it, weaker.
Market
The Ph Minus market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Ph Minus 51K times last year and spent an estimated £98K. The top 5 brands take 77% of clicks. Demand peaks in May–Jun–Jul. Flapen scores it 59 out of 100, a Maybe.
01 · Demand
An estimated 17.5% of those searches ended in a purchase.
Shoppers searched for this 51K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 17.5% of those searches ended in a purchase. Searches in the last 90 days moved +703.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated £98K a year.
- Searches, last 12 months
- 51K
- Growth, 90 days vs prior 90
- +703.8%
- Conversion, latest week
- 17.5%
- Market size, estimated
- £98Ka year
- Peak month
- July18.3× the quietest month
- Top search term
- ph minus17K searches a year
02 · Price
A sale here is worth £10.95.
Listings sell for £10.95 on average, from £5.37 to £19.33. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 500 to 750 of them. At £10.95 that is £5K to £8K a year per listing.
- Average price
- £10.95under the $15 to $100 sweet spot
- Price range
- £5.37–£19.33
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 10K–13K
- Units per listing a year
- 500–750
- Revenue per listing a year
- £5K–£8K
- Returns
- 0.2%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
83% of listings pay for placement with sponsored ads. 56% ship with Prime. On an average day, 3.3% of listings are out of stock. The average listing ranks #20 within Pools, Hot Tubs & Supplies. It carries 753 reviews at 4.60 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 83%
- Prime listings
- 56%
- Out of stock, average day
- 3.3%
- Average rank
- #20in Pools, Hot Tubs & Supplies
- Average rating
- 4.60 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 753per listing
- Listings tracked
- 18
04 · Newcomers
0 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 67 months on average, so the names here are established.
- Launched, last 12 months
- 3
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 67 months
Products
Top Ph Minus products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 26, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
1.5 Kg pH Minus Reducer Granules for Hot Tubs and Paddling Pools
- Price
- £7.93
- Rating
- 4.6/5
- Reviews
- 223
- Age
- 5y ago

Clearwater pH Minus Decreaser 1.5 kg Granules for Spa Hot Tub & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £10.29
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 1mo ago

7kg pH Minus - Bluewater Swimming Pool & Spa Chemicals - PoolShopUK
- Price
- £15.82
- Rating
- 4.7/5
- Reviews
- 398
- Age
- 9y ago

Bluewater 750g pH Minus - Swimming Pool & Spa Chemicals Above Ground Paddling Pool pH Balancer
- Price
- £7.45
- Rating
- 4.5/5
- Reviews
- 99
- Age
- 6y ago

Clearwater pH Plus Increaser - 1 kg Granules for Hot Tub Spa & Swimming Pool Water Treatment Boosts pH & Improves Water Balance
- Price
- £7.41
- Rating
- 4.6/5
- Reviews
- 7,880
- Age
- 18y ago
Trending
estimated 90-day click momentum
Safe Splash pH Minus 7kg Granules pH Reducer for Hot Tub & Swimming Pool Water pH Down for Spas Inflatable & Garden Pools Easy Dosing for Clear Comfortable Water
- Price
- £19.33
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 3mo ago

Clearwater pH Minus Decreaser 1.5 kg Granules for Spa Hot Tub & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £10.29
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 1mo ago

pH/KH Reducer ARKA pH Decrease 118ml lowers pH & carbonate hardness safely freshwater water conditioner with electrolytes protects slime coat ideal for Discus Tetras & soft water aquariums
- Price
- £5.37
- Rating
- 4.3/5
- Reviews
- 496
- Age
- 13y ago

Clearwater TA Plus Alkalinity Increaser for Swimming Pool and Spa Treatment White 19.0 cm*9.7 cm*9.7 cm
- Price
- £9.08
- Rating
- 4.7/5
- Reviews
- 3,405
- Age
- 7y ago

Deep Blue PH Minus 1Kg pH decreaser
- Price
- £9.59
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 2y ago
Newest
by launch date
Clearwater pH Minus Decreaser 1.5 kg Granules for Spa Hot Tub & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £10.29
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 1mo ago

Safe Splash pH Minus 7kg Granules pH Reducer for Hot Tub & Swimming Pool Water pH Down for Spas Inflatable & Garden Pools Easy Dosing for Clear Comfortable Water
- Price
- £19.33
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 3mo ago

Clearwater pH Minus Decreaser 3 kg Granules for Hot Tub Spa & Swimming Pool Water Treatment Lowers pH & Improves Water Balance
- Price
- £16.62
- Rating
- 4.0/5
- Reviews
- 5
- Age
- 7mo ago

pH Down pH Minus Decreaser 1.5kg For Swimming Pools Hot Tubs & Spas pH Reducer Lowers pH Levels in Pools & Hot Tubs Total Alkalinity TA Control Decreases pH Levels No More Mr Nice Guy
- Price
- £11.32
- Rating
- 4.8/5
- Reviews
- 40
- Age
- 2y ago

Deep Blue PH Minus 1Kg pH decreaser
- Price
- £9.59
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 61% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 rising
Sellers
25
Est. top-5 brand share
77%
Top 20: 100%
Est. top-5 click share
61%
Top 20: 100%
Open market
15%
- Clearwater28%
- SHATCHI22%
- Bluewater Pools & Spa Chemicals10%
- SUDS-ONLINE9%
- bluewater POOL & SPA CHEMICALS8%
- Zagosa8%
- Open — no brand owns it (5 brands, 15%)
Demand
Ph Minus search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Jul · busiest ÷ quietest = 18.3×
Search terms
Top Ph Minus search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ph minus17K/yr
- ph minus swimming pool6K/yr
- ph minus hot tub8K/yr
- ph reducer for swimming pool5K/yr
- ph reducer4K/yr
- ph decreaser for pool3K/yr
- clearwater ph minus3K/yr
- ph reducer hot tub4K/yr
Reviews and returns
What reviews say buyers love and hate about Ph Minus
We read the reviews and the return reasons for every product selling here.
“Doesnt work”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Ph Minus questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









