- Do you currently work in the pool industry?
20,000 gallon in ground pool with negative edge basin and spa with spillover to pool. Rock water cascade. In floor cleaning system with Hayward variable speed pump. Two additional pumps for waterfall and negative edge. Pebble plaster in dark color. Cartridge filter for main pool and sand filter for basin. Bleach & muriatic acid, with occasional dry acid. Borates.