Cost Comparison of Urinal Water Use between Unmanaged, Managed and Sani-Sleeve Managed
Unmanaged
Cisterns	Litres	Flushes	Hours	Days	Weeks	Litres	Cost 1000	TOTAL
	Flush	Hour	Day	week			Litres	Cost
1	9	4	24	7	52	314,496	1.66	£522.06
2	9	4	24	7	52	628,992	1.66	£1,044.13
3	9	4	24	7	52	943,488	1.66	£1,566.19
4	9	4	24	7	52	1,257,984	1.66	£2,088.25
5	9	4	24	7	52	1,572,480	1.66	£2,610.32
6	9	4	24	7	52	1,886,976	1.66	£3,132.38
7	9	4	24	7	52	2,201,472	1.66	£3,654.44
8	9	4	24	7	52	2,515,968	1.66	£4,176.51
9	9	4	24	7	52	2,830,464	1.66	£4,698.57
10	9	4	24	7	52	3,144,960	1.66	£5,220.63
Managed									Savings
Cisterns	Litres	Flushes	Hours	Days	Weeks	Litres	Cost 1000	TOTAL
	Flush	Hour	Day	week			Litres	Cost
1	9	2	8	5	52	37,440	1.66	£62.15	-£459.91
2	9	2	8	5	52	74,880	1.66	£124.30	-£919.83
3	9	2	8	5	52	112,320	1.66	£186.45	-£1,379.74
4	9	2	8	5	52	149,760	1.66	£248.60	-£1,839.65
5	9	2	8	5	52	187,200	1.66	£310.75	-£2,299.56
6	9	2	8	5	52	224,640	1.66	£372.90	-£2,759.48
7	9	2	8	5	52	262,080	1.66	£435.05	-£3,219.39
8	9	2	8	5	52	299,520	1.66	£497.20	-£3,679.30
9	9	2	8	5	52	336,960	1.66	£559.35	-£4,139.22
10	9	2	8	5	52	374,400	1.66	£621.50	-£4,599.13
Sani-Sleeve									Savings		Savings
Cisterns	Litres	Flushes	Hours	Days	Weeks	Litres	Cost 1000	TOTAL	Managed		Un Managed
	Flush	Hour	Day	week			Litres	Cost
1	9	0.17	24	7	52	13,104	1.66	£21.75	-£40.40		-£500.31
2	9	0.17	24	7	52	26,208	1.66	£43.51	-£80.80		-£1,000.62
3	9	0.17	24	7	52	39,312	1.66	£65.26	-£121.19		-£1,500.93
4	9	0.17	24	7	52	52,416	1.66	£87.01	-£161.59		-£2,001.24
5	9	0.17	24	7	52	65,520	1.66	£108.76	-£201.99		-£2,501.55
6	9	0.17	24	7	52	78,624	1.66	£130.52	-£242.39		-£3,001.86
7	9	0.17	24	7	52	91,728	1.66	£152.27	-£282.78		-£3,502.18
8	9	0.17	24	7	52	104,832	1.66	£174.02	-£323.18		-£4,002.49
9	9	0.17	24	7	52	117,936	1.66	£195.77	-£363.58		-£4,502.80
10	9	0.17	24	7	52	131,039	1.66	£217.53	-£403.98		-£5,003.11
Water Managagement Systems cost £120.00 per annum each
Water supply and sewage costs extracted from Severn Trent Water, Summary of Charges, Customer Information 2005/2006
Water Supply cost 1.0049 pence per Cubic Metre or 100.49 pence per 1000 litres
Sewage cost 6.592 pence per Cubic Metre or 6.592 pence per 1000 litres