100m3 in-ground liner pool. Magiline based (venturi based skimmer/return combos); entirely replumbed by yours truly. 1.5HP superpump (superplus clone) 3-phase pump with 2.2HP VFD; 3 * 63mm and 1 * 40mm flow and 3 * 50mm + 1 *40mm returns. 762mm Hayward sand filter, with glass media. Polaris 280 hooked up to 1HP booster pump on 40mm returns. Line also used (via shut-offs) for a suction side pool cleaner. 13A SWCG with homemade salt cell.