My take on water management. 5gal bucket will catch metal that doesn’t get caught by sink drain basket. One way flapper valve will close when a couple of pounds of air is applied to fluid in yellow barrel. Using low pressure regulator 0-30psi and adjustable orffice to keep from shocking tank with initial pressure. Easy disconnect unions to allow 5gal bucket to be dump or replaced. Steel clamp to hold lid on the bucket. Height and drain pipes will need shortening once table is together.
Close the drain valve when filling. Water will fill back thru 50micron filter to drain tee with 3/4 hose .