T@B (=TAB) was likely derived from TABbert, which is a part of the name of the European group that had designed the T@B concept (Knaus Tabbert GmBH from Germany). (View Post)
Goes to the gray water tank. We 'discovered' it when after 4 consecutive days of heavy A/C use in hot humid weather last year's Labor Day weekend our gray tank started backing up into the shower tab … (View Post)