Oh, the pressure switch chamber. Yeah, I had to go to the plumbing section at Home Depot to fabricate a new one, definitely more beefed up than the original. Even fabricated a new piece for the recirculating filter/automatic dispensers as well. Just about all the hoses (hose from the recirculating/automatic dispensers to the pump, pump the the magic mix dispenser filter, hose from the pump guard to the pump, hose from the pressure switch chamber to the pressure switch, the hose that goes from the automatic dispensers to the recirculating filter) were fabricated from plumbing parts which came from the plumbing department at Home Depot. So far, no leaks have came from those pieces I fabricated.