The volume can be calculated by multiplying the width and length of your
tank and the distance between the pyramids of the two sensors. *
For example, a tank has 18 inches in length and 17 inches in width. If the
distance between the two sensors is 3 inches, the water volume to be
changed will be around 4 gallons.
18” (L) X 17” (W) X 3” (H) = 918 cubic inches (around 4 gallons)
* The water volume might be inuenced by factors such as the speed of return pump.
Slower relling speed could reduce the variation. Please refer to the 3rd part of
Programming section.
Length : 18”
Width : 17”
Changed Water Volume Height : 3”
Calculating Water Volume to Be Changed
1. Old water in the tank/sump is pumped out until the water
level reaches S2.
2. There is a 3-minute pause before relling new water.*
3. New water is relled into the tank/sump until the water level
reaches S1.
*Users can skip the pause by touching .
Auto Water Change Process
Change for Simple
07
