I incorporated some plumbing parts from BRS to make it happen. I T’d it off from the return line and put in a ball valve to control flow. All in 3/4 inch. I positioned a HOB overflow that dumps back into the return pump chamber.
Parts I used are from BRS
3/4" PIPE ADAPTER SPIGOT X BARB
3/4” CEPEX BALL VALVE
2x 3/4” SCHEDULE 80 90° ELBOW SLIP X SLIP
6x RATCHET CLAMP FOR 3/4” TUBING
2x 3/4" CLAMP FOR PVC PIPE
DELUXE CS50 WITH LID AND AQUA LIFTER
Black 3/4” PVC schedule 40
3/4 barbed “T” fitting
I used a tigger systems 10 gallon ato reservoir instead of water box’s. It fits really well in the cabinet.