Thoughts on the ghl profulox 4 controller

[Gharris527]

What are your thought on this controller I have one that I love after I figured out how to set it up I keep having a Algae problem please help

 

[esther]

I have the GHL controller. I’ll be completely honest with you... you need a lot of time and patience to figure everything out. It seems to be a really well made product, though. The jury is still out for me on their customer service & support. With all that said, I’ve committed to GHL as a system moving forward. I would recommend it.

 

[Ditto]

Love mine :) Well built, no issues to report. Took a bit of getting use to the programming language after switching over to it, but have had no issues with mine and would not choose any other controller.

 

[Gharris527]

Love mine :) Well built, no issues to report. Took a bit of getting use to the programming language after switching over to it, but have had no issues with mine and would not choose any other controller.

How often do u calibrate the probes

 

[Ditto]

6 months, ones In the tank overflow area, 1 year on the ones in the sump. In the last 3 years I have had to replace 2 PH, 1 ORP and 1 Salinity all on in the dirtier part of my tank the overflow :)

KH Director 6 months also.

That across 4 tanks.

 

[esther]

6 months, ones In the tank overflow area, 1 year on the ones in the sump. In the last 3 years I have had to replace 2 PH, 1 ORP and 1 Salinity all on in the dirtier part of my tank the overflow :)

KH Director 6 months also.

That across 4 tanks.

Don't want to hijack this thread, but which probes do you keep in overflow and why not all in sump?