Soda Crystals Sinks & Drains. Unblocks grease from sinks and drains. Washing Clothes. Shifts heavy stains. Softens hard water. Kitchens. Cuts through grease on cookers, pans and surfaces. Cleaning solutions for 200 years. Biodegradable. No petrochemicals. Suitable for use in septic tanks. - Prepare and Use: Laundry Water Softening... Reduce the amount of detergent powder required by adding 25g-50g (depending on the water hardness) of Soda Crystals directly to the detergent drawer and add detergent at the level recommended for soft water. Always check for colour fastness before washing, and follow manufacturer's instructions. In the Kitchen... Soaking pans, grill pans and casserole dishes in a strong, hot solution, makes cleaning burnt-on food easy. Use a warm, mild solution to remove grease from work tops, oven hobs, extractor hoods and filters or to clean dirty floor tiles. Gardens & Patios... Remove moss from paths and patios by sprinkling Soda Crystals liberally over the affected area. Sprinkle water to wet the crystals and leave mixture for a day or so, then simply sweep away the moss. Use a strong, hot solution to degrease barbecues. Prevent drain blockages by regularly adding half a packet to each drain and sluice down with hot water.