I usually start by having my container of ro pump to another container. Once it's filled, I dump the salt in. I tried circulating with a spare mag36 I have but water went everywhere in the 20 gallon container lol. I use a mag 7 now. Wait about an hour, check salinity. If it's on, pump out 20 gallons, pump 20 in. I'll toss a heater in there to if the water is cold.