Is there a pH controller?

I am looking to find a product i can use to administer ph up or down as required without having to do it myself.

Is there such a product?

If so how does it work?

this is how it works, stick your head in the 5- 10 gallon tub for 15 mins. blink 3 times while biting on 4 roots, if you come up out of the water after the full 15 mins with the roots still in your mouth---ph down

I have a pH meter, i just am looking for something to automate the dripping of pH down solution, or pH up as required. Hence I am looking for, a controller, a way to have it take care of itself as programed.

Quote:

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Originally Posted by mobay

this is how it works, stick your head in the 5- 10 gallon tub for 15 mins. blink 3 times while biting on 4 roots, if you come up out of the water after the full 15 mins with the roots still in your mouth---ph down

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LOL!!!!

Yes, those machines come... they're called "Dosers".

From BGHydro.com :::
Complete Mini-Doser System (TDS/pH)
Your Price: $1,449.95 per Each

Most of the time Ph goes one way. Once it is set it's normal to climb most of the time more so then drop. so you can use the Milwaukee Ph system that uses tank CO² to control a fish tank. It also works for controlling res tanks too. You set the Ph you want to maintain and you get a digital reading. Makes keeping track of Ph easy.

You can get them from eBay. Again it cost money the setup is around 350 bucks.

Thanks, so the co2 brings pH down. This is done by aerating the reservoir with co2? I found the Milwuakee doser, so do i need to have 2 co2 tanks, one for the air and one for water, and if not is there a way to split the flow of air, 2 solenoids perhaps after a y-junction.

Ph system control a fish tank

neptune sys.
Pricing starts at $174.95!


http://www.neptunesys.com/products.htm

so can i use a controller like this to lower to 5.6pH, and if so would this use a lot of co2? Is it cost effective? I have a 60 gallon reservoir.

did I say gallon??? I meant litres.

Ok, so this thread is a little old, but I thought it better to continue the thread rather than start a new one.

I've looked at those controllers on ebay for about $75. The have the plugs for a CO2 tank. Could that plug just be used with a very small water pump, maybe a relay, and a reservoir of premixed acid? It seems like a pretty cheap way to do it.

I just don't wanna spend money to buy one before I know it'll work.