So I have 90 gallons total system volume. Was dosing 100ml of brs soda ash at 9 every morning. And testing at 8 at night. My alk drops to 7.3 when I test and have to add about 45 ml to get back up to 8. I changed my dos to deliver 150ml spread out over 24 hours. Is it ok to dose over 24 hours and should I dose the 100 or 150ml?