Growmax Garden Grow - 480 litres / hour - 2-Stage Water FilterGrowmax Water Filters Pure Water for a Pure End Product! Growmax water filtering systems effectively remove a wide range of chemicals from your tap water. It's crucial to avoid introducing unwanted chemicals into your nutrient regimen. Although tap water contaminants are typically present in low concentrations, they can accumulate in the substrate over time, leading to potential issues. For a truly clean and clear end product, filtering your water