New ph tools for the nute room

[Smoklahoma]

I am using gh ph down a full strength. You can only use one chemical for each control. Set the switch for either above or below. I have mine set to kick on at when it gets above 6.0. It turns the pump on and continues running until it reaches 5.8 then shuts off, preset parameter. After it shuts off the ph drifts down to 5.5, takes about 2 min.then stabilizes. Unit does nothing until it reaches 6.0 , then does it again. I am using two 55 gal barrels for res running 25 gal in each with 8 inch air stones right now. Might react differently with another set up but you should be able to dial it in with probe placement and strength of chemical.

 

[RetiredGuy]

If you continue to have good luck with your pH controller, I might add one before my next DWC grow. The wife and I like to go on short (5-7) night camping trips. After one 3 day trip my last grow, I came home to a reservoir pH of 5.1 II was not too happy about it. I have a 25 gal reservoir, is the flow the metering pump puts out adjustable. I would worry about overdosing the reservoir.

 

[Smoklahoma]

The flow is not adjustable to my knowledge. Been real nervous all week about letting it do all the work and not being there to see it when it doses.. Only seen it get to 5.4 one time, two days after nute change. Past 3 days it has been hanging around 5.9 . Will definitely post any problems or concerns along to way.

 

[Shamrock928]

Thank you for the details. I appreciate your taking the time to reply.

 

[Smoklahoma]

Well it seems that full strength was too much. Checked it last night, one barrel was at 4.8 . I am now running the ph down at 50/50 strength, maybe it won't drift that low again.