Wow, what an expensive mess!
One of the great thrills of my childhood was watching my uncle operate his cement mixer truck — the kind with the rotating drum on the trailer. This was in the 50s. He poured pink concrete especially for me for our family’s back patio!
IIRC they bought the pumper truck new for $80,000 in 1985. I bet it cost them 1/2 of that to replace the pump system.