[whatsnewell]

Have had my black tank pumped out more than a dozen times over the last 10 years, the most recent time being just a few weeks ago. No special equipment was used by the 'honey wagon' operators at any time. I provided the connection for his hose and he turned on the pumper an sucked out the effluent. All waste tanks are pretty adequately vented so I would think a collapse of any waste tank resulting from too much suction would be extremely rare.....I've never heard of this happening, although it is always a concern of mine. Does anyone know through first hand knowledge of this happening? Obviously, anything is possible.....is it probable.....I don't think so.