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Product guide

ADOSSY 3-inch Stabilised Chlorine Tablets, 5.5 lb

ADOSSY 3-inch Stabilised Chlorine Tablets are slow-dissolving tablets advertised for pool, hot tub and spa water treatment. The listing describes a four-function formula and claims extended release, but gives conflicting dissolve-time guidance, so the stated dosing interval should not be treated as settled.

At a glance

  • A single tablet is presented as a sanitiser, stabiliser, algaecide and clarifier.
  • The listing recommends use in a floating dispenser, skimmer or automatic chlorinator.
  • The product is claimed to be UV-stabilised with cyanuric acid.
Price
£19.99Save 20%

Reference price: £24.99

Price checked: 12 Nov 2026

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Often bought together

Pros and cons

Pros

  • The four stated water-treatment functions combine several pool-care roles in one tablet.
  • Individual wrapping is claimed, which may help keep tablets separated during storage.

Technical specifications

10 specifications
Identity
BrandADOSSY
ModelTrichloro-S-Triazinetrione
FormTablet
Composition and claims
Available chlorine90% available Chlorine
Trichloro-S-Triazinetrione purity99% Trichloro-S-Triazinetrione
Claimed functionsSanitiser, Stabiliser, Algaecide & Clarifier
Use and packaging claims
Tablet diameter3"
Tablet weight200g
Claimed treatment amount1 tablet treats 10,000 gallons of water
Weight listed5.5 Pounds

What to know before buying

Listing details to confirm

The listing gives conflicting dissolve-time claims of 5–10 days and 10–15 days, while also describing weekly dosing. It also varies between 90% available chlorine and 99% purity claims, so confirm the product label and dosing instructions before use.

Who is it for?

A good fit for

  • Pool owners seeking large, slow-release tablets for use in a compatible dispenser or feeder.
  • Buyers looking for a listed four-function chlorine tablet for swimming pools, hot tubs or spas.

Less suited to

  • Buyers who need a confirmed dissolve interval or precise dosing instructions from the supplied listing.
  • Buyers whose treatment setup requires smaller tablets rather than the listed 3-inch format.
ADOSSY 3-inch Stabilised Chlorine Tablets, 5.5 lb · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 67 ratings
  • 5 stars72%72%
  • 4 stars11%11%
  • 3 stars9%9%
  • 2 stars4%4%
  • 1 star4%4%

The supplied aggregate ratings lean positive, with most ratings in the highest star category, but a smaller share is spread across lower ratings. With no written feedback provided, the figures do not establish what buyers liked or disliked. They cannot resolve the listing's conflicting dissolve-time claims, which matter when planning dosing.

Frequently asked questions

What are these tablets claimed to do?

The listing describes them as a sanitiser, stabiliser, algaecide and clarifier. These are product claims, not independent performance findings.

How long does one tablet take to dissolve?

The listing says both 5–10 days and 10–15 days, and also recommends weekly dosing. Confirm directions on the product packaging before deciding a dosing schedule.

How much water does one tablet treat?

The listing claims one tablet treats 10,000 gallons of water. Follow the product label and appropriate water-testing guidance for your pool.

How are the tablets intended to be used?

The listing suggests a floating dispenser, skimmer or automatic chlorinator. It describes 3-inch tablets, so check compatibility with your equipment.

ADOSSY 3-inch Stabilised Chlorine Tablets, 5.5 lb · photo 3
Additional product photo 3

Alternative options

Product details in Markdown