Number of washrooms:
Number of cisterns:
Size of cistern in litres
Flushes per day - pre Purinal
Flushes per day - with Purinal
No of litres per flush [all cisterns]
Number of urinals:
Commercial water rate per m³	£
Annual inflation rate			%
Blockage call-out charge	£

	Year One			Year Two
	pre Prunial	with Purinal		pre Purnial	with Purinal
Flushes per day
Annual water consumption (litres)
Annual water cost
Chemical costs
Annual air freshener costs p.a.
Call out fees for 1 x block per urinal
Water Management System Rental
PURINAL installation
PURINAL refill cost & service rental
Total Cost:

Savings		Year One	Year Two
	Savings - £ per annum
	Savings - % per annum
	Annual Water Savings - litres