Originally Posted by athlete3344
By rinsing your filter media you probably killed your cycled tank bacteria.
I do it all the time. Never have a problem.
Interesting you say you had to pull the intake tube out and the impeller. I have a really old regent filter, and sometimes when I turn it on, the water will be full but it just makes like wooshing noise like the filter is trying to suck the water in and out but it just can't do it? So I pull the intake tube and impeller out and shove it back in and its works like brand new. But cleaning mine doesn't help lol.