DaveOB

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Fiberglass lined pool 37,000 liters ( 9775 US gal ), In-ground. Outdoors.
Equipment : Speck 0,75 kW pump, 2 bag sand filter, Cartridge filter ( large 90,000 liter ( 23,775 US gal ) capacity ).
T-Piece split with 2 ball valves - 1 to the pool return inlet, other to a 7 coil solar system on flat carport roof ( total area 11.49 sq.meters - 55 sq.ft ), and that to a second return inlet. Each inlet gets about equal flow, but can be adjusted using ball valves.
Pool temperature 24 Celcius ( 75 F ) in winter, 32 celcius ( 90 F ) in summer.