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gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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Why is the aux holding tank full when the main grey tank is

Customer Question

Why is the aux holding tank full when the main grey tank is empty
JA: What's the make/model/year of your RV?
Customer: Coachmen concord class c 2016
JA: What is the model of your '16 RV?
Customer: Concord ds
JA: Are you fixing your RV yourself? What have you tried so far?
Customer: Yes. All we can do is empty the. Aux grey tank no grey water goes to the main grey tank
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 1 month ago.
Category: RV
Expert:  Randall replied 1 month ago.

Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.

Expert:  Randall replied 1 month ago.

If you have two gray holding tanks they each have a valve and don't dump together. Look for the other valve.

Customer: replied 1 month ago.
Where are the separate valves. We know where two valves are but there is no water in the main grey to empty even though there is grey water backup in the shower and the kitchen sink
Customer: replied 1 month ago.
Why are the two most used water going to the small aux tank. And the big main grey is always empty