# HTH Anti-phosphates - 1 L

**Brand:** Hth
**Category:** Piscine & spa
**Code (GTIN/SKU):** 3521686004290
**Canonical URL:** https://openreviews.io/en/reviews/hth/hth-anti-phosphates-1-l-3521686004290

## Rating: 4.5/5 ★★★★★ — 24 reviews analyzed
_Confidence: high_

## At a glance

HTH Anti-phosphates - 1 L reviews: 4.5/5 based on 24 analyzed reviews from 2 sites, updated November 2, 2026.

Praised: water clarity. Criticized: variable effectiveness.

24 reviews analyzed, all published on other sites.
Other sites: 2 sources, 24 reviews, average rating 4.5/5.
How we count reviews: https://openreviews.io/en/methodology

## AI summary

This pool treatment is designed to eliminate phosphates from the water to limit algae growth. According to user feedback, it proves particularly effective at stabilizing and purifying pool water, helping to maintain clear and healthy water throughout the season. However, reviews remain mixed regarding its consistent effectiveness, as some users did not notice a clear improvement after application.

## Strengths

- **Water clarity** — It effectively helps purify the water by removing the nutrients that promote algae.

## Weaknesses

- **Variable effectiveness** — Some users report mixed results depending on their pool setup.

## Frequently asked questions

- Is it effective against all algae?
- How to dose the product correctly?
- Is the product compatible with chlorine?
- How long do you have to wait before swimming?

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_Source: OpenReviews — https://openreviews.io/en/reviews/hth/hth-anti-phosphates-1-l-3521686004290_