hth® algae guard 30, 38 fl.oz.

hth® algae guard 30 is a concentrated, non-foaming algaecide product that, when used regularly, will prevent and kill the growth of green, black and yellow algae.

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About This Item

hth® algae guard 30 is a concentrated, non-foaming algaecide product that, when used regularly, will prevent and kill the growth of green, black and yellow algae.

  • 30% Strength
  • Kills & controls green, black and yellow algae
  • Non-foaming
  • Compatible with Salt Systems

REVIEWS



Clear Up Green Algae with hth® algae guard 30


lady and kid swimming underwater

Works Quickly

The hth® algae guard 30 quickly kills and prevents green algae so you can get back to swimming as soon as possible. Use regularly for maximum effectiveness.

in-deck pool

Concentrated Formula

The non-foaming algaecide works to kill algae spores and prevent regrowth. Plus, it’s compatible with salt water systems.

adults and kids sitting on edge of pool

Easy to Use

Simply add the product directly to the pool with the pump running.


How to Prevent Algae Growth in Swimming Pools


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Brush & Remove Debris

To prevent algae growth, brush your pool weekly to remove any spores that have attached to the walls or steps. Trees and plants are a common source of algae spores, so trim leaves and branches back as much as possible and remove leaves and other debris from your pool right away. 

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Clean Your Filter

Clean your filter regularly to effectively remove dead algae spores from your pool. Use HTH® Filter Cleaner to clean all filter types and help the filtration system to work more efficiently.

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Add Chemicals

Shock your pool weekly to boost chlorine levels and keep your water crystal clear. One of the best ways to protect your pool from algae is to use a regular shock treatment, then follow up with a weekly dose of an algaecide like HTH® algae guard 30.


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