My brother has a Cardinal 5th wheel travel trailer with arctic pkg. It has 2 grey tanks. Does 1 switch control both grey tanks? The switches are not labeled. Thanks to anyone that knows.
he has 4 tanks total. fresh, black & 2 grey with 3 switches. Can't check it now. He is here in Az escaping the winter & his trailer is in storage in Ind. Thanks for the reply.
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