Waterproofing is an essential aspect of swimming pool construction. Concrete absorbs water, and therefore, proper waterproofing is necessary. It keeps the water in the pool from leaking out and prevents the seepage of groundwater. Cementitious coating and waterproof barrier products are essential to form a bond with concrete. This is because the composition is similar and also as polymer bonding agents strengthen it. Finishing options include plaster, adhesives, and overlays.