Why Your Solar Water Heater Needs a Pre-Filter

Solar water heaters are a long-term investment - and unfiltered tap water is their biggest enemy. Iron, sediment, heavy metals, and dissolved minerals silently accumulate inside your heater, reducing efficiency, corroding internal surfaces, and shortening its lifespan.

The Parashu^® Solar Water Heater Filter is engineered to stop these contaminants at the source - before they reach your heater.

How It Works: Filtration Stage Explained

Iron, Sediment & Particle Removal

Hard water carrying dissolved iron, fine dirt, dust, and rust particles flows through a high-capacity spun or wound filter cartridge. This stage captures suspended solids and iron particles, delivering clean, clear water to your solar heater's inlet.

Cartridges are easy to replace by hand - recommended every six months, or sooner depending on your local water quality and daily usage volume.

Filter Specifications

• Capacity: Up to 500 litres per hour (LPH)
• Maximum Working Pressure: 4 Bar
• Inlet/Outlet: Standard ½-inch BSP fittings
• Installation: At the cold water inlet of your solar water heater

The Parashu^® Solar Water Heater Filter is compatible with virtually all solar water heater brands and models available in India. Its standard ½-inch input-output connections make installation straightforward — simply fit it at your heater's water inlet.

Beyond protecting your heater, this filter also neutralises chlorine from municipal water supply, making the hot water gentler on skin during bathing. It reduces the etching effect that hard, untreated water causes on metal surfaces — benefiting your taps, valves, and showerheads as well.

For solar water heater dealers and installers: this filter can be bundled as part of your standard system package, adding measurable value and reducing post-installation service calls.