COR 20 IQ Calibration

[Letterkenny]

I have a Waterbox 130.4 that I am finishing setting up. What’s the ideal percentage to be running the return pump at (a COR 20)? I am trying to program my Apex for feed and maintenance modes but it is rather confusing as it refers to setting up the COR IQ mode. I am not quite sure I understand the concept. Under this mode, does it just run at the maximum you set the whole time and when you set feed mode, it will run at the minimum you have set which doesn’t create back flow? If it chooses a range of speeds between there, I would think this creates an issue with how you set the gate valve as anything under the ideal setting would result in the emergency drain being used.

 

[SPR1968]

Can anyone help with this, I’m guessing the flow output just needs to be balanced with your system but maybe someone else can help

#reefsquad

 

[Billldg]

I run a Cor20 on my 120 gal tank. It is way more than enough which is where the IQ comes into play. In reality you are setting the min and max of the pump. At 100 percent on my Apex the Cor is actually running at 40 percent of its capability. The min keeps the pump running while in feed mode, but drops the water level enough in the tank to help keep food from going down the overflows and into your sump. I have mine set at 40 max and 20 min, each tank is different. Also, it keeps the pump from coming on at 100 percent and draining the sump after a power outage as it will never go above set max.

 

[Albertan22]

There is no ideal percentage to run the pump, it’s entirely dependent on your plumbing. Run the setup task for the IQ and it will walk you through it. As stated above, it sets a range for the pump to operate in. If in IQ setting you set your max as 70%, then that becomes your 100% in the rest of the Apex programming. As a return pump, you don’t really want to vary your flow up and down other than for a feed mode so this feature isn’t a big deal, but as a feed pump for a manifold, closed loop, UV, etc., it becomes useful.

One last thing, be sure to set your fallback to whatever the top value of you IQ ends up being. Any time I cycled the power on my Apex my Cor20 came on at 100% until the head unit regained its wifi connection until I figured this out. It would drain my return chamber and kick my ATO on and pump a ton of freshwater into my sump and send my emergency drain running and splashing like crazy. Now I have a line “Fallback 48” in my programming and it’s fine.

 

[Letterkenny]

Thanks for the insight. I’m running a manifold with three reactors (one of which will always be on as it is my algae reactor). Sort of wish I bought the flow monitoring kit now so I know how much flow is going into each of these.