BACK UP 2 – 500 ML
If your pool runs on a biguanide system, you've made a specific choice — gentler water, no chlorine smell, a premium swimming experience. The one thing biguanide sanitisers can't do as effectively as chlorine is prevent algae. That's not a flaw in the system. It's a gap that BACK UP 2 was specifical
R246,33
Closes the algae gap your sanitiser can't cover alone. Polyhexamethylene biguanide (PHMB) is outstanding at bacterial control. Its algae prevention spectrum is narrower than chlorine. BACK UP 2 fills that gap — providing the algaecide coverage that completes your system's protection profile. Together, they produce genuinely comprehensive water care.
Fully compatible — no clouding, no precipitation, no interference. The wrong algaecide in a biguanide pool produces cloudy water, visible precipitation, and system disruption that's expensive to correct. BACK UP 2 is formulated for your system — it works with your sanitiser, not against it.
Weekly prevention costs less than a single emergency correction. A green pool in a biguanide system is more complicated and more expensive to treat than in a chlorine pool. A weekly maintenance dose of BACK UP 2 prevents that scenario entirely — small ongoing cost, zero emergencies.
Protects the premium swimming experience you chose this system for. The reason biguanide pool owners love their water is the absence of chlorine chemistry — the gentleness, the smell, the feel. Algae in that water destroys the experience completely. BACK UP 2 is the product that keeps the experience intact.
If your pool runs on a biguanide system, you've made a specific choice — gentler water, no chlorine smell, a premium swimming experience. The one thing biguanide sanitisers can't do as effectively as chlorine is prevent algae. That's not a flaw in the system. It's a gap that BACK UP 2 was specifically formulated to fill. You chose a premium system. Protect it with the product that was made for it.
Product Type: Long-Acting Polyquat Algaecide
Active Ingredient: Poly(oxyethylene(dimethyliminio)ethylene dichloride) — quaternary ammonium 40%
Form: Liquid concentrate
Primary Use: Season-long algae prevention / winter closing treatment
Dosage (initial): ±500 ml per 50,000 L
Dosage (maintenance): ±100 ml per 50,000 L per month
pH Range for Use: 7.0 – 7.8
Foaming: Low-foam formula
Compatibility: All chlorine and biguanide pool systems
Application: Add to pool with pump running; distribute around perimeter
Wait Time to Swim: 15 minutes after application
Brand: BioGuard
Size: 500 ML
Compatible Pool Types: All: marbelite, plaster, fibreglass, pebble
Delivery Available or Click & Collect