Forum Discussion

marcarolle's avatar
marcarolle
Explorer
Oct 20, 2017

How find out if bathroom sink drains in gray or black tank

2008 Gulf Breeze 26RKS The owner manual I have (not sure I have the appropriate one) says that the bathroom sink MAY drain in the black water tank. The only way I can come up with is: 1. Em...
ksg5000's avatar
ksg5000
Explorer
Oct 20, 2017
After you dump your tanks leave the black water valve open and turn on the bathroom water - if you hear it run down to the sewer you have your answer. In my case the bathroom sink is connected to the black water tank - shower is connected to gray water.

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