ALGI SHIELD 2 L BIOGUARD
A green pool in December costs you roughly R800–R1,500 to recover — chemicals, time, the three swim days your family lost while you nursed it back. The week before Christmas. The weekend before guests arrived. You know this is a possibility. ALGI SHIELD costs R180 and makes it not happen. That maths
R253,58
Your family swims every day it's hot enough — without interruption. A pool on a preventative algaecide programme doesn't go green. Doesn't produce surprise recovery weekends. Doesn't cancel Saturday plans. It just stays clear, all summer, in the background of your life where a well-maintained pool belongs.
Protection where chlorine has blind spots. Algaecide attacks algae through a completely different mechanism than chlorine — disrupting cell membranes rather than oxidising. This means algae can't establish itself even during the brief chemistry dips that happen during a heavy rainstorm or a week away on holiday. ALGI SHIELD fills the gaps chlorine leaves.
Prevents the surface staining that's far harder to remove than to stop. Algae doesn't just turn water green. It stains marbelite and plaster with dark patches that require acid washing or resurfacing — costs that run into thousands. A regular preventative dose stops the staining before it starts.
Swim immediately after a maintenance dose. No extended waiting period for routine preventative dosing. Add your weekly maintenance dose and the pool is still available to swim in — prevention doesn't cost you a pool day.
A green pool in December costs you roughly R800–R1,500 to recover — chemicals, time, the three swim days your family lost while you nursed it back. The week before Christmas. The weekend before guests arrived. You know this is a possibility. ALGI SHIELD costs R180 and makes it not happen. That maths is not complicated. The pool owners who never deal with green water didn't get lucky. They're using ALGI SHIELD. It's a decision, not a coincidence.
Product Type: Polyquat Algaecide (non-foaming)
Active Ingredient: Poly(oxyethylene(dimethyliminio)ethylene dichloride) — 60% quaternary ammonium
Form: Liquid concentrate
Initial / Shock Dose: ±200 ml per 10,000 L
Maintenance Dose: ±50 ml per 10,000 L weekly
Target pH for Use: 7.2 – 7.8
Foaming: Non-foaming formula
Compatibility: Chlorine AND biguanide systems
Application: Add directly to pool with pump running — broadcast across surface
Wait Time to Swim: 15 minutes after application
Brand: BioGuard
Size: 2 L
Compatible Pool Types: All: marbelite, fibreglass, plaster, pebble
Delivery Available or Click & Collect