Hi, I have an overflow with a 1" suction drain with gate valve in sump and a 1.25" drain that I use as emergency drain and I trickle a little water down to maintain the water level in the overflow near the top to reduce noise. I have a new COR pump and I would like to add 3 water level sensor in the overflow so that I can maintain the water level between two of the sensors positioned just below the top of the emergency drain so that I do not need to trickle water down it any more. The third sensor would be position high in the overflow and use as as backup to shut down pump. Right now I need to trade off COR flow rate and the gate valve position to get desired flow rate and a trickle down the emergency drain. For example, lets say for current valve position COR is running at 50%. My thinking is to just bounce the COR between two fixed flow values, for example 50% and 48% based on feedback from the two lower level sensors. The water level would slowly oscillate between the two sensors. Below is outline of some apex code. Looking for some suggestions from the community.
Thanks,
John
==snip==
OverflowSet OFF
If Switchname1 OPEN Then ON
OverflowHI
Set OFF
If Switchname2 OPEN Then ON
OverflowLo
Set OFF
If Switchname3 OPEN Then ON
Cor advanced tab
(flow control logic here?)
If Output Overflow = ON Then OFF
Bookmarks