APPLIED BIOCHEMISTS Yellowtrine Granular Algaecide for Mustard/Yellow Algae, 3 lb — Residue-Free Pool Cleaner

If you’re battling stubborn yellow or mustard algae blooms, this 3-pound container of Yellowtrine from Applied Biochemists offers a targeted, granular treatment that works with any pool sanitation system. It’s formulated to be used alongside a chlorine shock product and is suitable for vinyl, concrete, and fiberglass pools. The formula breaks up algae colonies and helps clear visible staining so standard sanitizers can maintain water clarity after treatment.

How quickly will Yellowtrine clear mustard algae from my pool?

Results can be seen within hours to days depending on the severity of the outbreak and pool circulation. Yellowtrine attacks and loosens algae and deposits so that subsequent shock and filtration remove them more effectively.

• Start with brushing affected surfaces to expose algae.
• Apply Yellowtrine as directed, then follow with a chlorine shock product.
• Run filters continuously and vacuum loosened material for faster clearing.

Can I use this product with my existing sanitizer system?

Yes — Yellowtrine is compatible with chlorine, bromine, salt systems, ozone, and mineral sanitation. Because it’s a granular algaecide, it’s intended to complement your sanitizer, not replace shock treatment or routine maintenance.

• Works alongside chlorine and non-chlorine systems.
• Requires follow-up with a chlorine shock for full sanitation.
• Safe for most pool surfaces when used according to label instructions.

What steps should I take after treating my pool?

After applying Yellowtrine and the recommended chlorine shock, keep the pump and filter running until water clears. Brush treated areas to dislodge residues, vacuum settled debris, and backwash or clean filters as needed to restore circulation and clarity.

• Brush pool surfaces daily during treatment to free deposits.
• Vacuum or filter out dislodged material to prevent recontamination.
• Wait the indicated time before swimming — typically a few hours after treatment.

Does Yellowtrine leave any residue or affect pool finish?

Yellowtrine is formulated to destroy deposits without leaving a visible residue when used properly. Follow label dosing and brushing recommendations to minimize any temporary cloudiness while deposits break down.

• Designed to clear deposits without staining or residue buildup.
• Temporary cloudiness is possible while filtration removes debris.
• Compatible with vinyl, plaster, fiberglass, and concrete surfaces.

Who is this for: Applied Biochemists Yellowtrine is aimed at pool owners and maintenance professionals facing mustard or yellow algae outbreaks who already use a chlorine shock product. It’s suitable for backyard pools, community pools, and commercial sites that need a granular algaecide compatible with a range of sanitizers. Choose Yellowtrine if you want a focused treatment to break down algae deposits and restore water clarity so your regular sanitizer and filtration system can maintain clean water.

• BENEFITS: Quickly rids pools of mustard algae outbreaks
• USE: Swimming may be resumed several hours after treatment
• COMPATIBILITY: Works with all types of pools and all sanitizers including bromine, chlorine, salt water, ozone and minerals
• FEATURES: Destroy deposits without leaving a residue
• INCLUDES: One 3-lb container of Yellowtrine from Applied Biochemists