this is the official program that I developed to make it work on my pico- and yes, I did use a Reef Keeper Elite. and yes, I ran this setup flawless for 2 years with no problems- only reason I ceased using it, I moved into a new home, and just never got back around to setting up my pico tank since the move last May.
3 Cups of water to be changed during water change period. There are 16 cups per Gallon. 2X a day (6 cups total) times 7 days = 2.625 gallons of water change per week- nearly 100% water change weekly in the picotope!
1. Use three channels on my RKE PC4
a. Ch2, programmed as a multi timer (assigned to timer 1) activating every day at 8:00pm (old water out). Siphon break device would prevent any farther amount of water from being removed than desired. Pump is assigned to be on for 6 minutes 40 seconds. And off for 11 hours and 53 minutes and 20 seconds (8am) and run for 6 minutes again for a second water change in 24 hour period.
b. Ch3, programmed as a switch, with a standard float switch controlling it. (this channel is my normal auto top off)
c. Ch4, programmed as multi-timer (assigned to timer 2) activating every day at 8:07pm (new water in) . This timer is assigned to be activated on for 6 minutes and off for 11 hours and 54 minutes (8:07am ) and run for 6 minutes (second water change period of 24hours). This offers plenty of time to refill the tank. Float switch will turn off the pump at maximum level.
d. Alarm 1 is activated by ch2 or ch4 turning on. It is assigned to Ch3. (this turns off my ATO while the old salt water drain pump is on or if the new salt water feed pump is on)
e. Alarm 2 is activated by float switch. When the float switch opens (upper limit) it turns off Ch4.
2. Pump assignments
a. Aqualifter pumps are assigned to channel 2 and channel 4 for auto water change pumps
b. Air pump is assigned to channel 3 for ATO.
I came back and installed the float switch on the fresh salt water to shut off the system in the event of depleting and preventing a full water change from taking place.
3 Cups of water to be changed during water change period. There are 16 cups per Gallon. 2X a day (6 cups total) times 7 days = 2.625 gallons of water change per week- nearly 100% water change weekly in the picotope!
1. Use three channels on my RKE PC4
a. Ch2, programmed as a multi timer (assigned to timer 1) activating every day at 8:00pm (old water out). Siphon break device would prevent any farther amount of water from being removed than desired. Pump is assigned to be on for 6 minutes 40 seconds. And off for 11 hours and 53 minutes and 20 seconds (8am) and run for 6 minutes again for a second water change in 24 hour period.
b. Ch3, programmed as a switch, with a standard float switch controlling it. (this channel is my normal auto top off)
c. Ch4, programmed as multi-timer (assigned to timer 2) activating every day at 8:07pm (new water in) . This timer is assigned to be activated on for 6 minutes and off for 11 hours and 54 minutes (8:07am ) and run for 6 minutes (second water change period of 24hours). This offers plenty of time to refill the tank. Float switch will turn off the pump at maximum level.
d. Alarm 1 is activated by ch2 or ch4 turning on. It is assigned to Ch3. (this turns off my ATO while the old salt water drain pump is on or if the new salt water feed pump is on)
e. Alarm 2 is activated by float switch. When the float switch opens (upper limit) it turns off Ch4.
2. Pump assignments
a. Aqualifter pumps are assigned to channel 2 and channel 4 for auto water change pumps
b. Air pump is assigned to channel 3 for ATO.
I came back and installed the float switch on the fresh salt water to shut off the system in the event of depleting and preventing a full water change from taking place.

