I have an Icecap 36 sump and would like to covert the ATO reservoir section into a refugium. I think I would tee of the drain to get water into the refugium section and then it overflows back into the skimmer section wiith overflows into the return section. I would need to drill a few holes on the wall that separates the ATO from the skimmer section. Makes sense and will it work? Thanks!