how do ph controllers work?

[Nathan]

just curious to as how the ph controllers work an any extra info anyone has on them.

thanx

[Noddy65]

Hi Nathan
My understanding is that they read the pH of your tank water and then turn off the CO2 when it reached the desired level.

Mike

[shewey]

I think they simply turn a solanoid on or off depending on what reading the probe gets for the ph. When the solanoid is turned on it opens the gate for the co2 to be released.

I think thats how it works, but I am sure someone will correct me if I am worng.

Shewey

[Nathan]

oh ok thanx for that guys.

havnt heard from u for a while mike, how r things?