Your goal is to get to 1.009 SG in about 48hours from start. If you are at 1.022 after 24 hours I would not push to 1.009 over the next 24 hours, but over 36. I would pull out 2.5 gallons in the morning and drip in RO water of similar pH and temp over 18 hours, then pull out another 2.5 gallons and drip in 2.5 gallons of RO water over another 18 hours. That should get you near 1.009 in 36 hours. Monitor your pH carefully during hypo as you have lost much of your buffering capacity in the hypo state.