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Old 06-05-2021, 10:11 AM   #2
porthole
Senior Member
 
Join Date: Jun 2009
Posts: 455
DRV has used 3 different versions of hte anderson panel that I know off.

Which one do you have - picture.

The newer versions have a check valve on the tank fill line.

The safest simplest fix is a 1/4 turn valve in the the fill line.
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Thanks,
Duane
2019 DRV MS 39DBRS3 ---> Flexible Flyer
2020 F-450
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