I found the option for those folks who have bad tank sensors or if they are inaccurate and want to replace them. It may be an option worth looking into, Here is the you tube channel demonstrating it and installing it. I would add RTV to the sensor after the install to ensure they remain in place.
Amazon has the needed wire:12vdc:12awg and heat shrink tubing 1/8"
I found the
LevelGuard Z25302RK on amazon. They have from a 1 tank system to a 3 tank system. The video was done for a cabin, but the install is pretty easy to follow.
Water Tank Level Monitoring System - No Drilling - LevelGuard Review
If anyone has done this mod, please share your pics along with where you drilled out ir in to run the cable and any challenges you faced.