FAQ - Pool Algaecides | Pool Chemicals
Does algaecide replace chlorine?
No. Algaecide is a preventive support: disinfection must be managed with chlorine and by controlling pH according to water test results.
In what order should algaecide and chlorine be used?
Generally, the parameters are balanced first (especially pH), disinfection is carried out (chlorine) and then the algaecide is applied as prevention. Follow the instructions on the label and never mix products together.
Are algaecide and anti-algae the same thing?
In the pool sector, “algaecide” is often used as a synonym for “anti-algae”: both refer to products that help prevent algae growth.
When is it best to use it?
As a preventive measure, especially in hot weather, with heavy use, after rain or when you want to reduce the risk of green water and deposits on surfaces.
When is it recommended to use UNI ALGA END EXTRA when opening the pool?
At the start of the season it is useful as a preventive support after restoring the system and the first disinfection, to reduce the risk of algae in the first weeks. Always follow the dosage on the label.
Can I use UNI ALGA END EXTRA together with a shock treatment?
It can be used as support, but it must never be mixed directly with other chemicals. After the shock treatment, wait until the water stabilizes and follow the product instructions for timing and dosage.
How often should it be used for maintenance?
It depends on temperature, usage and water volume. The correct rule is to follow the label and adapt the routine to the tests and conditions (heat and bathers increase demand).
What are the most common mistakes with anti-algae (algaecide)?
Underdosing or using it only once without continuity, neglecting pH and disinfection, pouring the product in the same spot without distribution, and mixing different chemicals.
If the water is already green, is algaecide enough?
Usually not: when the water is green, a corrective disinfection (e.g. chlorine shock) and filtration/vacuuming are needed first; algaecide is more effective as prevention and support after restoration.
Where should the product be poured correctly?
Generally into the pool with active circulation, distributing it along the perimeter to favor dispersion. Follow the label instructions for application and safety.
Recommended products
Fast Pool Chlorine, Granular, Shock - Dichlor 56%
Slow Pool Chlorine, 200 g Tablets - Trichlor 90%
3 in 1 Multifunction Pool Chlorine | 20 g Tablets
pH Minus for Pools, Granular | pH Reducer
pH Plus for Pools, Granular | pH Increaser
Pool Flocculant, 100 g Tablets
Pool Algaecide - Super Concentrated
CLEAR Pool Descaler - Limescale and Metal Sequestering Agent, Liquid
Stabilized Sodium Hypochlorite 14/15% (Liquid Chlorine)
Pool Edge Cleaner | Detergent for Black Line and Waterline Dirt
BWT ES Nano Cordless | Cordless Pool Robot with Wi-Fi App for Floor, Walls, and Waterline, New 2026
BWT ES Echo Cordless Pool Robot Cleaner - Battery Powered - WiFi App - New 2026
Hayward Tiger Shark XL QC Pool Cleaning robot, up to 15 meters
BWT ES1500 Pool Cleaner Robot for Floor, Walls and Waterline, Bluetooth App, Caddy, 4-Year Warranty, up to 15 m
Do you have questions or would like more information?
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