CASE STUDIES
Data collected using H2OiQ IOT Water Monitoring System
Fluidmaster AIRGAP 6000 Series
CASE STUDY
Carried out within a Council Head Quarters Building
Fluidmaster AIRGAP 6000 Series
CASE STUDY
Carried out within a University
Tap Flow Restrictors
CASE STUDY
Carried out within a Hotel
Fluidmaster AIRGAP 6000 Series
CASE STUDY
Client : Council Head Quarters BuildingClient Project Manger : Council - Water Projects OfficerBACKGROUND
H2OiQ's Realtime Smart Water Monitoring equipment was installed in a Gents Washroom at a council premises consisting of 3 x WCs with existing standard ball valves fitted. We proceeded to collect water usage data and patterns including WC fill flow rates and daily total usage. This data was collected over several months to achieve an accurate account of the water usage in the trial location.
After the initial data had been collected, we then removed the 3 x ball valves and then replaced these with 3 x Fluidmaster AirGap valves. We proceeded to monitor the water usage to prove the water savings and improved performance and efficiency.
FEEDBACK
Council - Water Projects Officer
"Since the installation of this exciting product AirGap, I have been actively monitoring the water consumption levels, the early indications are that between 2-3 litres have been saved per flush. This product ticks a lot of the boxes in that it saves water, carbon and ultimately will lead to cheaper water bills."
Trial Results
STANDARD BALL VALVE DATA
Graph 1 shows a total daily water usage of 957.75 litres on 6th September 2019 with 3 x WCs fitted with standard ball valves
Graph 2 shows a total cistern fill rate for 1 x WC of 9.50 litres on 6th September 2019 after the first flush of the day at around 07:39 with the standard ball valves
FLUIDMASTER AIRGAP FILL VALVE DATA
Graph 3 shows a total daily water usage of 631.24 litres on 8th November 2019 with 3 x WCs fitted with Fluidmaster's AirGap Fill Valves
Graph 4 shows a total cistern fill rate for 1 x WC of 6.60 litres on 8th November 2019 after the first flush of the day at around 08:05 with the Fluidmaster's AirGap Fill Valves
SUMMARY
When the Gents Washroom WCs had standard ball valves fitted, each WC used around 9.50 litres per flush.
When the same WCs were fitted with Fluidmaster's AirGap Fill Valves, each WC used around 6.60 litres per flush.
The case study shows a saving of at least 2.90 litres per flush with no negative impact on the flush.
This is a water saving of 31% per flush compared to the standard ball valve.
This equates to a saving of nearly £250 per annum with CO2 reduction of 110 kgs across the 3 x WCs.
The Ladies Washroom WCs savings are nearly £1,000 per annum with CO2 reduction of 440 kgs across 3 x WCs (due to higher usage).
Bottom Entry AIRGAP 6000 Series
Side Entry AIRGAP 6000 Series
Fluidmaster AIRGAP 6000 Series
CASE STUDY
Client : University
Client Project Manger : University - Senior Mechanical Engineering ManagerBACKGROUND
H2OiQ's Realtime Smart Water Monitoring equipment was installed in a Gents Washroom within a university building. The trial consisted of monitoring 1 x WC1 with an existing third party WC fill valve fitted. We proceeded to collect water usage data and patterns including WC fill flow rates and daily total usage. This data was collected over several months to achieve an accurate account of the water usage in the trial location.
After the initial data had been collected, we then removed the third party fill valve and then replaced these with Fluidmaster's AirGap valve. We proceeded to monitor the water usage to prove the water savings and improved performance and efficiency.
Trial Results
THIRD PARTY FILL VALVE
Graph 1 shows a total daily water usage of 227.12 litres on 9th December 2019 with 1 x WC fitted with a third party fill valve
Graph 2 shows a total cistern fill rate for 1 x WC of 8.25 litres on 9th December 2019 after the first flush of the day at around 05:43 with a third party fill valve
FLUIDMASTER AIRGAP FILL VALVE DATA
Graph 3 shows a total daily water usage of 68.20 litres on 17th December 2019 with 1 x WC fitted with Fluidmaster's AirGap Fill Valve
Graph 4 shows a total cistern fill rate for 1 x WC of 6.13 litres on 17th December 2019 after the first flush of the day at around 06:44 with the Fluidmaster's AirGap Fill Valve
SUMMARY
When the Gents Washroom WCs had the third party fill valve fitted, the WC used around 8.25 litres per flush.
When the same WC was fitted with Fluidmaster's AirGap Fill Valves, the WC used around 6.13 litres per flush.
The case study shows a saving of at least 2.12 litres per flush with no negative impact on the flush.
This is a water saving of 26% per flush compared to the third party fill valve.
This equates to a saving of nearly £140 per annum with CO2 reduction of 57.32 kgs per WC.
The equivalent Ladies Washroom WC saving is nearly £560 per annum with CO2 reduction of 229.28 kgs per WC (due to higher usage).
- Tap Flow RestrictorsCASE STUDYClient : HotelClient Project Manger : Energy & Environmental Manager
BACKGROUND
H2OiQ’s Realtime Smart Water Monitoring equipment was installed in a Gents Washroom within a Hotel Lobby Area consisting of 4 x mixer taps. We fitted flow sensors on the hot and cold water supplies and collected water usage data and patterns including usage periods, flow rates and daily total usage. The data was collected over several months to achieve an accurate account of the water usage in. After the initial data had been collected, we then installed a total of 4 x tap restrictors (one on each mixertap). We continued to monitor the water usage to prove the water savings and improved performance / efficiency.SUMMARY OF RESULTS
Pre-installation - inefficient hand wash water usage:
1 minute usage =
0.69 litres (cold water) @ a max flow rate of 0.93 litres per minute
0.52 litres (hot water) @ a max flow rate of 0.71 litres per minute
Total inefficient hand wash usage over 1 minute = 4.31 litres @ a max flow rate of 6.58 litres per minute
Post-installation - efficient (Tap Flow Restrictors) hand wash water usage:
1 minute usage =0.69 litres (cold water) @ a max flow rate of 0.93 litres per minute0.52 litres (hot water) @ a max flow rate of 0.71 litres per minuteTotal efficient hand wash usage over 1 minute = 1.21 litres @ a max flow rate of 1.64 litres per minuteThe results show a water saving of 3.1 litres with the Tap Flow Restrictors fitted
This is a water saving of 72% based on 1 minute of hand wash usageBased on 100 uses per day, this equates to a saving of approximately£286 per annum with a CO2 reduction of 118 kgsResults
Please see a snapshot of the results below:PRE-INSTALLATION - INEFFICIENT COLD WATER USAGE:
TAP ON - Graph 1
shows the cold tap water supply for a typical hand wash commencing at 16:53:10 on 22nd Dec 2019 starting from a meter read of 63.53 litres
TAP OFF - Graph 2
shows the cold tap water supply for a typical hand wash ending at 16:54:10 on 22nd Dec 2019 with a meter read of 66.36 litres
Graph 3
shows the cold tap water supply for a typical hand wash ending at 16:54:10 on 22nd Dec 2019 with a max flow rate of 5.10 litres / min
PRE-INSTALLATION - INEFFICIENT HOT WATER USAGE:
TAP ON - Graph 4
shows the shows the hot tap water supply for a typical hand wash commencing at 16:53:10 on 22nd Dec 2019 starting from a meter read of 68.81 litres
TAP OFF - Graph 5
shows the hot tap water supply for a typical hand wash ending at 16:53:40 on 22nd Dec 2019 with a meter read of 69.55 litres
Graph 6shows the hot tap water supply for a typical hand wash ending at 16:53:40 on 22nd Dec 2019 with a max flow rate of 1.48 litres / min
Pre-installation inefficient hot water used per typical hand wash:1 minute usage = 1.48 litres (30 seconds usage = 0.74 litres) at a max flow rate of 1.48 litres per minPOST-INSTALLATION - EFFICIENT COLD WATER USAGE:
TAP ON - Graph 7
shows the cold tap water supply for a typical hand wash commencing at 11:40:57 on 2nd Jan 2020 starting from a meter read of 19.69 litres
TAP OFF - Graph 8
shows the cold tap water supply for a typical hand wash ending at 11:41:57 on 2nd Jan 2020 with a meter read of 20.38 litres
Graph 9shows the cold tap water supply for a typical hand wash ending at 11:41:57 on 2nd Jan 2020 with a max flow rate of 0.93 litres / min
Post-installation efficient cold water used per typical hand wash:
1 minute usage = 0.69 litres at a max flow rate of 0.93 litres per minPOST-INSTALLATION - EFFICIENT HOT WATER USAGE:
TAP ON - Graph 10
shows the hot tap water supply for a typical hand wash commencing at 11:40:57 on 2nd Jan 2020 starting from a meter read of 54.60 litres
TAP OFF - Graph 11
shows the hot tap water supply for a typical hand wash ending at 11:41:57 on 2nd Jan 2020 with a meter read of 55.12 litres
Graph 12shows the hot tap water supply for a typical hand wash ending at 11:41:57 on 2nd Jan 2020 with a max flow rate of 0.71 litres / min
Post-installation efficient hot water used per typical hand wash:
1 minute usage = 1.21 litres at a max flow rate of 0.71 litres per min
