Update:
so far both tanks don't have any leaks and has been running for a few days now, and there's this problem I have, the noise of the drain it goes like "BLOKBFFFPBPPBPBPBP...SCHHHLLLLLLRRRRRPPP...BLOBLOKFFFPLLPPKKBBB"
even without the pipe.
so...after rummaging through my extra stuff for the tank I've found something that could silence the toilet flush once and for all:
that is from a BRS biopellet/carbon reactor, so I've sliced the inner most plastic and placed it on top of the drain inside the overflow box, now my problem is I think it'll overflow the overflow box, so I'm going to have to do some trial and error today.
this is going to the skimmer's outlet now...
i'll update this thread later if I can
"Nearly all men can stand adversity, but if you want to test a man's character, Give him power."
-Abraham lincoln