That means when you hooked the fuel lines back up to the filter they did not
seal right. This is the in-tank filter, right? B6 covers many years, and I keep
seeing NO ONE specifying a year, just B6 or GAS or DIESEL too, I mean, really.
The FILTER itself won't leak, the seals will leak, or the hose connections...
That just means you damaged the hose connections when taking them off,
or did not seal it back down into the tank right.