Hi Alan,
yes, I know about the exeption with the Calpeda pump. Amel decided to add it to the bonding system and as they were doing it for a long time there seemed to be no negative response from the technicians - so we stick to it. But we keep a close eye on the electrical systems and restrain ourselves in adding equipment. There is no corrosion on any parts or the c-drive.
Regards,
Walter (Noa, SM2K #437-1)