So I decided to blow my stimulus money on a super fancy sump / frag tank / refugium from Advanced Acrylics that will be in the basement below my 90 gallon display. Tank has been up and running for over a year and is doing great. So once I get this sump system plumbed, how do I switch over to the new sump without affecting the tank? Is there some sort of compression fitting so i don't have to wait 24 hours for glue to dry? Can i just shut off return and let my MP40s handle the flow for 24 hours? I do have an embarrassingly old HOB protein skimmer that could be used for nutrient export. Should i change the size of my drain / returns? Both are 1 1/4" presently. Any advice would be appreciated!