i had a sump on my 50g once. it was super awesome. unfortunately when i moved and broke it down i had to take apart the plumbing in the overflow and the rubber gasket/o-ring/sealing piece now doesn't sit right and leaks. i've been to more plumbing supply stores than i can remember, and none of them carry anything even similar to what i need. so, no more sump.
hopefully you are on a well. adding chlorinated tap water directly to the filter is a really good way to kill all your bacterial colonies.
when adding water back in i put the end of the pyhon into the filter when the water gets up over the end of the tubeand let em fill up and they start filtering againl
hopefully you are on a well. adding chlorinated tap water directly to the filter is a really good way to kill all your bacterial colonies.