Yes, they make an aftermarket tank flush. You have to drill a hole in the end of the tank and insert a spray nozzle. You have to route a hose to the side of the trailer.
CW sells one. They can install it for you, but it is not very hard to DIY. The hardest part is getting access to the tank.
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Mark S.
2014 Cougar 318SAB
2015 Silverado 3500HD 6.6L Diesel 4WD CC SB
18K Pullright Hitch
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