Sump waterproofing is a crucial process that ensures the longevity and structural integrity of underground water storage systems. The primary aim is to prevent water seepage, which can lead to structural damage, contamination, and inefficiency in water storage. This process typically involves cleaning the sump thoroughly to remove any debris and loose particles. After cleaning, a layer of waterproof coating or membrane is applied to the interior surfaces of the sump. This coating acts as a barrier, preventing water from seeping through the concrete or masonry. Common materials used for sump waterproofing include cementitious coatings, bituminous coatings, and polymer-based sealants, each chosen based on the specific requirements of the site and the type of water to be stored. In some cases, additional layers of protection, such as a protective screed or plaster, may be applied over the waterproof coating to enhance durability. Proper sump waterproofing not only extends the lifespan of the structure but also ensures that the stored water remains clean and uncontaminated, making it a vital maintenance practice for residential, commercial, and industrial buildings.