RV Repair: Installig a black water tank in a trailer., vent line, waste tank

Question
I have a49ft 1993mallard sprinter trailer It needs a black water waste tank. I would like some info. I am fairly handy and believe I can tackle it. I would just like some tips. Thanks

Answer
open under belly  remove the toliet and when the tank comes down you will have to cut the vent line as far as the drain side I would use no hub coulpers ever where I could the toilet and the floor flange will be the worst the rest is easy



Oh make sure the tank is empty