When pool builder plumbed my pool they installed dummy cell. Well the tech came out to get pumps running (after filling pool for 1st time) and install the screenlogic kit. Well he removed the dummy cell and installed the IC40 on start up. I had assumed they'd install that after they come back in 30 days to add salt etc...I was quite surprised when coming home from work to see cell all ready installed. Did they possibly damage the cell? I read the instructions and they state on new builds to wait 30 days for debris to clear out and plaster to cure.