Setting up a Litermeter III

[Hockeydad]

Ok, I am technically challenged and need help.
I have a Geo Kalk reactor and a Litermeter III. I want to replenish water from midnight through 6am and have the Litermeter on a timer.
What should my flow rates etc. be set at to make up tw0 gallons of water daily?
Thanks

[Fig]

Why just at night? I run my Litermeter III 24 / 7 with just a slight drop from day to night. I do drip kalk but don't have a reactor either?

[slovan]

I run mine 24 hours a day with no problems. If you insist on having it dose from midnight to 6am, you might want to get a timer for it. 2 gallons equals 7.56 liters. If you're only going to run it for 1/4 of the day, you might want to take 7.56 X 4 to make the Litermeter dose 2 gallons between midnight to 6am.

[Hockeydad]

because I run a calcium reactor 24/7 and wanted to raise my ph at night to offset the Ca reactor.

[Hockeydad]

I know I have to increase flow by four times but what are your settings on the meter given your current 24/7 operation?