Inverted pH control

Basic / Standard Reef Angel hardware
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jcjrogers
Posts: 66
Joined: Fri May 05, 2017 11:27 am

Inverted pH control

Post by jcjrogers »

I've split my RO reservoir line to run to my kalk stirrer and directly to the sump. I've also installed a solenoid on the line running to the sump. When pH is "high" I want to turn on the solenoid, allowing RO to flow directly to the sump. When pH is "low", I want to turn the solenoid off forcing all water through the kalk stirrer. I'm using internal memory but if you set to turn on at the "high" and off at the "low", it doesn't work. How can I make work?
rimai
Posts: 12881
Joined: Fri Mar 18, 2011 6:47 pm

Re: Inverted pH control

Post by rimai »

inverted ph control is co2 control :)
Roberto.
jcjrogers
Posts: 66
Joined: Fri May 05, 2017 11:27 am

Re: Inverted pH control

Post by jcjrogers »

rimai wrote:inverted ph control is co2 control :)
Perfect. Thanks!
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