I just installed a couple dishwashers, one for us and one for a
friend, and one for a friend, no screen washers,,,,,,,,,


They usually have one in the water inlet solenoid itself. Thankfully the
intake plumbing on a dishwasher is really simple. Copper tubing to a
compression fitting at the solenoid valve, and a hose out of that through a
nozzle into the washer compartment. The recirculation plumbing that does the
washing is separate and very hard to clog.