We have now been operating Delta Valves for nearly a year. We have experienced what I call a “false bottom.” The false bottom is the solidified layer of coke in between the Delta Valve gate and the feed line entry point. Most of the time as we open the Delta Valve, an adequate amount of water does come out and we can drain that way, but at times we can open the Delta Valve full open and not get a very good drain for a few minutes then the “false bottom” falls out. Sometimes this leads to a blowout. Are there others experiencing simular events?
