Yes, using a 3/8" braided supply line on your pump discharge will reduce flow rate compared to 1/2" PEX, but it can work effectively for vibration dampening if sized appropriately for your specific application.
Yes, RV Fisher and Paykel drawer dishwashers can typically be replaced with residential versions of the same model. Verify cabinet opening dimensions, water connections, and electrical match. Installation is straightforward swap in most cases.
RV PEX connections use crimp rings, not compression fittings. For DIY repair, PEX cinch clamps with ratchet tool are easiest. SharkBite push fittings are tool-free but cost more. FIP refers to threaded connections at valves and fixtures.