QUESTION: I’ve learned a lot about pumps from this column, but I never see much on the trays that are attached to the tank. I’ve seen the various ways they are made and I wonder which trays are best? Is there such a thing as the ‘best’ tray design?Mitch Rankins
New Orleans, La.ANSWER: I’ve seen all sorts of designs and constructions of trays and some are better than others. Let’s take a look at the various ways trays are made and attached to the vacuum tank.Trays made from 3/16-inch steel plate are strong and durable. With the right bracing underneath, they
