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Old 07-14-2021, 06:25 AM   #1
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Black Tank Flush question

Have a 2021 GT7, hooked the black tank flush up for the first time after getting ready to pull out from our first week out. As soon as I turned the water on it started pouring out from above the hookups in the compartment and spraying inside the laundry closet. Water even came out the external dryer vent but inside dryer was dry so vent just must not be connected properly. How hard is it to get these units out for cleaning up this closet and what are possible problems that could have caused this to happen in the first place?
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Old 07-14-2021, 09:01 AM   #2
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Most likely the back flow preventer has failed. They are fairly easy to replace, once you find it. LOL

Try looking in the closet where you saw the water coming out. May have to remove a panel to get to the actual part for replacement.
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Old 07-14-2021, 09:26 AM   #3
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Could be a bad connection at an elbow, too. A bore scope camera could possibly help you determine the failure point.
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