Tropical climates deliver intense concentrated rain. Re-check catchment area and storage volume against local rainfall formulas, then set first-flush and filtration grades. Prioritise reuse for cooling tower make-up, irrigation and road washing to cut mains water use.
Frequent extremes demand modules that resist UV ageing, heat softening and impact. Xihai modules pass impact testing (4.0 kg mass from 2.0 m, no cracking) and oven testing, with glass-fibre modified PP for added toughness.