Dart Gold Pumping Leaking Help

[intarsiabox]

I haven't seen these pumps myself but have worked on thousands of others. This pump uses a mechanical seal. The hole on the bottom of the adaptor plate on some models is only there to let you know when the seal is leaking. It doesn't take much to damage these seals, even placing the sealing faces on the counter could cause micro scratches that will cause a leak.