I have 2 Questions
1) What role does the cane vent play in vertical pumps and what significance does it hold in their operation?
2) In a system where both On-spec and Off-spec pumps of ethylene spheres share a common vapor balance line for pump cane vent, which extends to the On-spec sphere and the ethylene fractionator, is there a potential risk of contaminating the Onspec sphere or Fractionator product when operating the Offspec sphere transfer pump, while ensuring that the cane vent line remains directed towards the vapor balance line?