Black Tank Flush not working - Grand Design Owners Forums

I have a 2019 31MB fifth wheel, on our most recent campout the black tank sprayer stopped spraying, it worked 2 weeks ago. When I hook up the water hose to the inlet and turn it on I can hear water entering the black tank and it flows out the discharge pipe but I cannot hear the sprayers working like I always have. Any ideas

Imagine

Unity - Specifications - Leisure Travel Vans

RV Black Tank Flush Grand Design Reflection

Valterra Flush King™ 45 Degree Reverse Flush Valve Attachment for RV, Camper, Trailer : Automotive

Black water tank will not flush - Grand Design Owners Forums

Salem Villa Destination Trailers - Forest River RV

s7d1.scene7.com/is/image/granddesignrv/2600RB-B2F

Black water tank will not flush - Grand Design Owners Forums

20 Best Fish for a 55-Gallon Tank - PetHelpful

Black Flush Line - Shorten? - Grand Design Owners Forums