Help!!! Cor-20 / Apex Frustrations

Susan Edwards

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So I've been trying to get the 2 cor-20 pumps hooked up to apex so flow speed will be set even after a power outage (not default to full flow). Today I hooked them up to the apex, not the energy bar which gave me trouble last time (volt errors). I set them both to 20% in the apex. 1 of them, it was way too powerful. The other, barely flowing into the display! No matter in the Apex what I changed, it wasn't right. It pumped the water out of the return section, or when I got that fixed, the overflow was too low. Open gate valve, close gate valve.... I gave up! And hours later, just now have the gate valve about right. Almost...

Without the apex I run them at 2 lights on the controller. What does that translate into flow percentage? If each light has 2 settings (bright and faint) and they are each an "8" per neptune, I should be around 16%.

I want to get them tied into the apex, then I'll work on plugging them into the energy bar! Somehow I'm not understanding this...

Tank is a RS 9003xl. Approx 225 water volume total.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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