procurement of complete set of wash water pump procurement of complete set of wash water pump as per tender documents , specs. as per enquiry cum offer , rfq item no. 10: complete wash water pump with motor , rfq item no. 20: mandatory spares , rfq item no. 30:supervision during erection and commissioning ( 1 su incl. the per diem charges and overtime rates in the next two rows ) per diem charges ( per person ) for 8 hr work on normal working days ( monday to saturday ) , overtime rate / hour beyond normal 8 hr work on normal working days , overtime rate / hour for work on weekly off / holidays ( as applicable to refinery / project site )