ESFR system materials tend to cost more than control mode systems (larger pipe sizes, more expensive sprinkler heads). Also, in most cases an ESFR system will require the installation of a fire pump, which is not always required for a control mode system. sprinkler systems are not required.
Definition of flay. 1 : to strip off the skin or surface of : skin The hunter flayed the rabbit and prepared it for cooking. 2 : to criticize harshly : excoriate He was flayed by the media for his controversial comments.
flounder1. 1  to struggle with stumbling or plunging movements (usually followed by about, along, on, through, etc.): He saw the child floundering about in the water. 2  to struggle clumsily or helplessly: He floundered helplessly on the first day of his new job.