Next, after letting everything set and dry again, i did a water test with the filter and a gallon and a 1/2 of water, let it run for 5 days
After those 5 days i wanted to make sure no residual glue was in the water, i didnt have a pH tester but i did a taste test (dont judge me) and it seemed identical with a bottle of water i had on hand. Next i emptied the tank, cleaned it up with some hot water and a sponge, and FINALLY felt confident enough to make the big tank change.