28,000g i/g, 10' Dolphin slide, waterfall and spa. Year round. Black Marble Pebble Tec; jandy DEV60 Filter; Jandy JEP 2.0; Jandy FHPM 2.0 2 spd pump| iaqualink 2.0| 2 Jandy WaterColors LED Large, 1 Jandy WaterColors Small | Jandy LRZ NG Heater; Polaris QT spa blower, Dolphin Premier Cleaner; Rainbow Lifeguard 320 chlorinator (no longer use); Nature2 (removed minerals)| Construction Time Lapse- Time Lapse: Swimming Pool Construction - YouTube