Some are connecting their black tank rinse to their fresh water rinse. You are entrusting a check valve to protect your fresh water hose from any black tank backwash. Worse yet, for those that keep the black tank rinse connected via a T, you won't know when the check valve has failed. I have a dedicated black tank rinse hose that stays attached to the rinse connection.
To each their own.
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Gil
03 Prevost H3-45
Hoffman Conversion
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