Alkalinity Increaser Hot Tub
FailThe top 5 brands take 100% of clicks, so Alkalinity Increaser Hot Tub is a Fail.
- Flapen Score
- 48 / 100Ranks 3,444 of 5,777 Home & Garden niches · −3 vs the category median of 5148
- Market size
- £91K/yr33K searches / yr
- 90-day growth
- +337.7%search demand this quarter
- Competition
- 96%top-5 click share · 4 brands · 13 sellers
Flapen Score
Alkalinity Increaser Hot Tub against its category
The dotted line is the Home & Garden average. Past it, Alkalinity Increaser Hot Tub is stronger. Inside it, weaker.
Market
The Alkalinity Increaser Hot Tub market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Alkalinity Increaser Hot Tub 33K times last year and spent an estimated £91K. All 4 brands take every click. Demand peaks in May–Jun–Jul–Aug. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 23.4% of those searches ended in a purchase.
Shoppers searched for this 33K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 23.4% of those searches ended in a purchase. Searches in the last 90 days moved +337.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £91K a year.
- Searches, last 12 months
- 33K
- Growth, 90 days vs prior 90
- +337.7%
- Conversion, latest week
- 23.4%
- Market size, estimated
- £91Ka year
- Peak month
- July8.1× the quietest month
- Top search term
- alkalinity increaser8K searches a year
02 · Price
A sale here is worth £11.76.
Listings sell for £11.76 on average, from £6.32 to £18.32. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 1,500 to 2,000 of them. At £11.76 that is £18K to £24K a year per listing.
- Average price
- £11.76under the $15 to $100 sweet spot
- Price range
- £6.32–£18.32
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 1,500–2,000
- Revenue per listing a year
- £18K–£24K
- Returns
- 0.1%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. 67% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #21 within Pools, Hot Tubs & Supplies. It carries 814 reviews at 4.65 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 83%
- Prime listings
- 67%
- Out of stock, average day
- 0.0%
- Average rank
- #21in Pools, Hot Tubs & Supplies
- Average rating
- 4.65 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 814per listing
- Listings tracked
- 6
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 64 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 64 months
Products
Top Alkalinity Increaser Hot Tub 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
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

SUDS-ONLINE 5KG TA Plus Total Alkalinity increaser raiser Hot Tub Spas swimming pool (Alkalinity Builder)
- Price
- £18.32
- Rating
- 4.6/5
- Reviews
- 324
- Age
- 9y ago

SUDS-ONLINE 500g TA Plus Total Alkalinity increaser raiser Hot Tub Spas swimming pool
- Price
- £6.32
- Rating
- 4.6/5
- Reviews
- 470
- Age
- 9y ago

Relax 5kg TA+ Total Alkalinity Raiser Increaser Grade A Hot Tub Spa Pool
- Price
- £18.18
- Rating
- 4.6/5
- Reviews
- 101
- Age
- 7y ago

Total Alkalinity Increaser For Pools Hot Tubs & Spas 1kg Increases TA pH Levels - pH Plus pH Increaser pH Alkali Up - Total Alkalinity TA Control No More Mr Nice Guy
- Price
- £10.88
- Rating
- 4.8/5
- Reviews
- 51
- Age
- 2y ago
Trending
estimated 90-day click momentum
SUDS-ONLINE 500g TA Plus Total Alkalinity increaser raiser Hot Tub Spas swimming pool
- Price
- £6.32
- Rating
- 4.6/5
- Reviews
- 470
- Age
- 9y ago

Total Alkalinity Increaser For Pools Hot Tubs & Spas 1kg Increases TA pH Levels - pH Plus pH Increaser pH Alkali Up - Total Alkalinity TA Control No More Mr Nice Guy
- Price
- £10.88
- Rating
- 4.8/5
- Reviews
- 51
- Age
- 2y ago

Relax 5kg TA+ Total Alkalinity Raiser Increaser Grade A Hot Tub Spa Pool
- Price
- £18.18
- Rating
- 4.6/5
- Reviews
- 101
- Age
- 7y ago

SUDS-ONLINE 5KG TA Plus Total Alkalinity increaser raiser Hot Tub Spas swimming pool (Alkalinity Builder)
- Price
- £18.32
- Rating
- 4.6/5
- Reviews
- 324
- Age
- 9y 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
Newest
by launch date
Total Alkalinity Increaser For Pools Hot Tubs & Spas 1kg Increases TA pH Levels - pH Plus pH Increaser pH Alkali Up - Total Alkalinity TA Control No More Mr Nice Guy
- Price
- £10.88
- Rating
- 4.8/5
- Reviews
- 51
- Age
- 2y 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

Relax 5kg TA+ Total Alkalinity Raiser Increaser Grade A Hot Tub Spa Pool
- Price
- £18.18
- Rating
- 4.6/5
- Reviews
- 101
- Age
- 7y ago

SUDS-ONLINE 5KG TA Plus Total Alkalinity increaser raiser Hot Tub Spas swimming pool (Alkalinity Builder)
- Price
- £18.32
- Rating
- 4.6/5
- Reviews
- 324
- Age
- 9y ago

SUDS-ONLINE 500g TA Plus Total Alkalinity increaser raiser Hot Tub Spas swimming pool
- Price
- £6.32
- Rating
- 4.6/5
- Reviews
- 470
- Age
- 9y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 96% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
13
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
96%
Top 20: 100%
Open market
0%
- Clearwater68%
- SUDS-ONLINE23%
- Relax4%
- No More Mr Nice Guy4%
- Open — no brand owns it (0%)
Demand
Alkalinity Increaser Hot Tub search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 8.1×
Search terms
Top Alkalinity Increaser Hot Tub search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- alkalinity increaser8K/yr
- alkalinity increaser hot tub9K/yr
- hot tub alkalinity increaser4K/yr
- pool alkalinity increaser2K/yr
- ta plus for hot tub4K/yr
- total alkalinity increaser3K/yr
- ta plus2K/yr
- alkaline increaser for hot tub2K/yr
Reviews and returns
What reviews say buyers love and hate about Alkalinity Increaser Hot Tub
We read the reviews and the return reasons for every product selling here.
“still no effect”
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.
10 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 Alkalinity Increaser Hot Tub 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









