Frequently Asked Questions

Answer: Yes. Under the Uniform Building By-Laws (UBBL) and SPAH (Sistem Penuaian Air Hujan) guidelines in Malaysia, rainwater harvesting systems are mandatory for new commercial developments, industrial plants, residential buildings, bungalows, and semi-detached houses with a roof catchment area of 100 sq. meters or larger. I Controls Solution (M) Sdn. Bhd. designs and supplies fully compliant I-RAIN® rainwater harvesting solutions engineered to meet all local authority approval standards across Malaysia.

Answer: Basic harvested rainwater is ideal for non-potable (non-drinking) applications, such as toilet flushing, landscape irrigation, cooling towers, vehicle washing, and general facility cleaning. When paired with our advanced I Controls Water Treatment & UV Disinfection System, the harvested water is purified to a high-grade standard, making it completely safe for showering, laundry, and general domestic washing, significantly cutting municipal water bills.

Answer: The I-Rain® Pre-Screen Filter is installed at the main catchment inlet. It features a self-cleansing stainless steel mesh that automatically intercepts leaves, twigs, and large airborne debris before rainwater enters the main storage tank, preventing clogging and sediment accumulation inside the system.

Answer: The first rainfall wash after a dry period typically carries roof dust, bird droppings, and atmospheric pollutants. The I-Rain® First Flush Device automatically isolates and diverts this initial contaminated water away from the main storage tank. Once the initial wash is diverted, only clean, clear rainwater is allowed to flow into storage.

Answer: During extended dry periods, our I-Rain® Automatic Top-up Device monitors tank water levels. If rainwater falls below the operational threshold, the device automatically feeds a controlled amount of municipal water into the system. This guarantees uninterrupted supply for toilet flushing and facility operations without overfilling or wasting tap water.

Answer: RainPro PP Modular Tanks are constructed from high-strength recycled polypropylene matrices offer critical schedule and efficiency advantages over full concrete tanks. Constructed from high-strength polypropylene with a 95% void ratio for maximum water storage capacity, PP Modular Tanks substantially reduce structural concrete work, heavy formwork, and extensive curing lead times. This slashes underground tank installation time by up to 70%, dramatically mitigating project delay risks and helping main contractors meet strict site completion milestones.

Answer: An I Control Rainwater & Wastewater Treatment System is recommended when higher water clarity, microbiological safety, or trade effluent recycling is required—such as for industrial process water, commercial laundry, and industrial wastewater treatment. Our specialized treatment modules integrate multi-media filtration, membrane technology, and disinfection to ensure treated effluent meets environmental discharge standards and Ministry of Health (MOH) non-potable reuse guidelines.

Answer: Implementing an I-RAIN® system contributes directly to Green Building Index (GBI) and GreenRE certifications in Malaysia across multiple categories: Rainwater harvesting and OSD stormwater detention earn Water Efficiency (WE) and Sustainable Site credits, while our PP Modular Tanks—manufactured from high-strength recycled polypropylene—contribute directly to Recycled Content & Sustainable Material credits, boosting the project’s overall ESG rating.

Answer: Yes. Our modular pre-screen filters, compact first flush devices, and flexible storage tanks are engineered for effortless retrofitting onto existing commercial, industrial, or residential properties without requiring major structural redesign or building disruption.

Answer: Storage capacity is calculated based on roof catchment surface area, local historical rainfall data, or daily non-potable water consumption requirements. Our technical team at I Controls Solution provides custom hydraulic calculations and sizing proposals to optimize system efficiency and meet local council or authority submission requirements.

Answer: I-RAIN® systems are designed for low maintenance. Facility managers or homeowners only need to inspect and rinse the pre-screen stainless steel mesh and flush out the first flush chamber every 3 to 6 months to maintain peak water flow and filtration performance.

Answer: Our I-RAIN® equipment is backed by a standard 12-month warranty against manufacturing defects from the material delivery date, subject to our official Terms & Conditions. Supported by our dedicated technical team in Kuala Lumpur, I Controls Solution provides complete technical submittal documentation, system sizing guidance, and local after-sales support across Malaysia.