You wouldnt think a dodgy lot from 1 manufacturer would hold up some form a completely different 1 though?
Depends upon who 'owns' the design.
For example, NSW RFS own their appliance designs & contract builders to make them.
They have about 8 or so stock plans & that is what your brigade can have. Period.
So, if the design is defective & owned by CFS, then whoever builds it is likely to
build in the faults of the original run **unless the CFS has fixed the design**.
If, on the other hand, CFS is buying appliances designed by the manufacturer, we can
expect a completely different set of faults. Other than the cheapo hose fittings
specified by the CFS that is...
cheers