Red sea dosing sytem

[somethingfishyny]

On my 525xl I feed refrigerator food through the apex and DOS that allows my to pump in reverse to flush the line back to the refrigerator so food doesn't spoil. I'm setting up a max nano peninsula in my office and want to do the same thing but don't want to do a full apex. Does anyone know of another doser that can achieve this?

 

[DanyL]

Here is an idea if you are looking for a cheap solution but don't want to build one from scratch.

If you already own a dosing pump with DC motors and have 1 extra free head, you can wire the same motor into 2 different pump headers on the board, one with the wires in reverse.

This allows you to program the same pump from 2 different "views" in the software, so that pump #1 will control it in "normal" direction, while pump #2 in reverse.