Toilet Seal

jillj

We have a 270 EC.  Recently when we flush the toilet the black water fully evacuates out of the toilet only to seep back into the bowl.  It seems like things are not sealing properly.  I assume there is a seal that can replaced.  Anyone know what I would need and how to go about replacing?

raybo3

I am pretty sure its called the "joker valve". 

jillj

Thanks

Liberty44140

Yep, assuming your tank is empty replace the joker. Should be done every 1-2 years. That could also happen if your holding tank air vent is not allowing air to escape. 

SoulGravy

We had this issue when the tank simply got too full.  If the tank isn't full and you're having the issue, it's the joker valve.

reneechris14

When I retire I'm going to be the pump out guy.

Dude_Himself

@reneechris14 don't have to retire, just have kids.