SUN SHIELD 1 KG BIOGUARD

Your chlorine lasts 5–10 times longer in direct sun. Cyanuric acid forms a temporary molecular bond with free chlorine that protects it from UV photolysis — so a morning dose maintains a biologically active residual throughout the afternoon. The same amount of chlorine, applied the same way, protecting your pool all day instead of evaporating by noon. That difference compounds over an entire swim season.

Your annual chlorine spend drops by 50–75%. The numbers are consistent across pool types and sizes: correct CYA level (30–50 ppm) reduces chlorine consumption by more than half. Pool owners who add stabiliser for the first time and then compare their chemical invoices quarter-over-quarter are consistently surprised by the scale of the saving. A single application of SUN SHIELD pays for itself within weeks.

Your pool stays protected during peak bather hours. Without stabilisation, your pool may be adequately sanitised at 8am and dangerously under-protected by 2pm — precisely when it's at maximum use. Proper stabilisation maintains protection throughout the day. The safety level you want, available when your family actually needs it.

Once per season — and it holds. CYA doesn't degrade or get consumed in pool water. It only leaves with backwash water and drainage. One treatment at the start of summer typically holds through to autumn — no regular re-dosing, no ongoing maintenance. The best cost-to-benefit ratio in pool chemistry.