tastingSalty
New member
Yay or nay?
I know the elite will . . .
I know the elite will . . .
Can the ReefKeeper Lite control a top-off pump?
- Thread starter tastingSalty
- Start date
Absolutely. It can do it in pretty much the same way as the Elite using the same module as an Elite, the RKM-SL1.
au01st
New member
Yup. I have mine controlling 2 top off pumps, one for kalk, the other for straight RO/DI. I have it set to turn on an aqualifter with kalk every 4 hours for a few minutes, then 10min after that pump timer turns off, it turns on the RO/DI pump. I have an alarm set so as long as the PH is below 8.4, it will use the kalk. If the PH goes above 8.4, the kalk pump turns off and a few minutes later, the RO/DI pump turns on. It technically uses both pumps, but since the pumps are controlled with float switches, the pumps turn off when the switch trips, and since the RO/DI turns on just after the kalk turns off, it doesn't run UNLESS the kalk drip doesn't turn on because the PH is too high.
The result is a very stable PH and water level.
The result is a very stable PH and water level.
vangogh121
New member
Wow... can you draw this out. I would like to do the same.
au01st
New member
Sure. I will say that this cannot be done solely with the RKL as they can only have one alarm per output. I used a relay for the kalk aqualifter pump hooked to float switches and the PH controlling feature to determine which pump to use.
First of course is to determine how often to mix kalk. I have mine set to mix for 2min every 4 hours using a timer.
I have the Aqualifter for the kalk set to turn on 15min before the kalk mixes or 3:43 after the mixing pump has turned off. I have this aqualifter on a 10min timer with an alarm set for PH. Because of the one alarm per output, this output goes to the relay which is hooked to the float switches (2 in series at different heights). If the PH is below 8.4, and the float switches are closed, the aqualifter is allowed to turn on and pump ro/di from my reservoir through the reactor. If the PH hits 8.4 the RKL turns the output off. If the float switch opens, the pump turns off via the relay. Simple right, lol.
This is the setup I used for the kalk aqualifter. Just a basic ATO kit plugged into the RKL and set with the PH alarm.
http://www.autotopoff.com/products/DS1/
The aqualifter for straight ro/di uses the switch capabilities of the RKL hooked to the same float switches. It is set to turn on 5min after the aqualifter for the kalk turns off. If the PH was below the alarm setting and the system topped off with kalk then the float switch will still be open, and the system will not dose ro/di. If the PH was 8.4 and the system did not top off with kalk, the float switch will remain closed and the pump will top off with ro/di until the float switch opens.
First of course is to determine how often to mix kalk. I have mine set to mix for 2min every 4 hours using a timer.
I have the Aqualifter for the kalk set to turn on 15min before the kalk mixes or 3:43 after the mixing pump has turned off. I have this aqualifter on a 10min timer with an alarm set for PH. Because of the one alarm per output, this output goes to the relay which is hooked to the float switches (2 in series at different heights). If the PH is below 8.4, and the float switches are closed, the aqualifter is allowed to turn on and pump ro/di from my reservoir through the reactor. If the PH hits 8.4 the RKL turns the output off. If the float switch opens, the pump turns off via the relay. Simple right, lol.
This is the setup I used for the kalk aqualifter. Just a basic ATO kit plugged into the RKL and set with the PH alarm.
http://www.autotopoff.com/products/DS1/
The aqualifter for straight ro/di uses the switch capabilities of the RKL hooked to the same float switches. It is set to turn on 5min after the aqualifter for the kalk turns off. If the PH was below the alarm setting and the system topped off with kalk then the float switch will still be open, and the system will not dose ro/di. If the PH was 8.4 and the system did not top off with kalk, the float switch will remain closed and the pump will top off with ro/di until the float switch opens.
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