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how do I increase PH without alkalinity? Is my calcium hardness ok? Taylor 2006kit # FC 6 CC.25 Ph 7.0 Alk 150 CH 210 Cya40 When I did my base deman test it took 4 drops and Taylor kit says add soda ash 3.lb for 20thousand gallon .. I have 35g vinyl ingrown pool with sand filter..