"Andy Dingley" (clip) IMHO, find a different sort of pump. (clip)
^^^^^^^^^^^^^^^^
I agree with Andy. A great many woodturners use vacuum chucks, so the
question of what is the best pump has been thoroughly discussed. These jet
pumps require a large compressor. The compressor plus the pump is noisy and
inefficient. Better to use a Gast vane pump or a compressor from an old
refrigerator. It is also possible to adapt an automotive air conditioning
compressor.