this thread is i good now i can talk about my crazy ideas without looking insane, like what about a refugium with a twice a day fill partial drain, with sealed lid, the evap would drain back into the main system, warmer water temps and possibly having it out doors to get lots of sun, the conditions would leave the water in the refugium sterilized by hyper salinty and temp, acting as make shift marsh land, oh and the water could drain through mud and sand on its way back, then before entering the system mix with fresh rodi to exact the same salinty and temp