Case Studies

FOGRod 1

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CUSTOMER:   ASP - CARTER PUMPS (CENTRAL SOUTHERN ENGLAND)

WASTEWATER PUMP STATION LEVEL CONTROL RESILIENCE PROJECT

 

10 Electrode FOGRod + Liquid Indicator Transmitter (LIT)

Retrofitted by Carter Pumps in under 6 HOURS

 

  • Replacement of ultrasonic controller that was sporadically transmitting a false high level resulting in the 27kW pumps often running on wasting large amounts of energy

  • Duty pump now configured to switch on at 40% wet well level and off at 10%

  • Standby pump starts at 60% wet well level 

  • Failsafe LIT cable fault / mains fail output available for telemetry

  • LIT 4-20mA output for remote wet well level viewing on telemetry

  • Mini UPS installed to give approx 8 hours of back-up in the event of power failure to keep the level reading visible at site & on telemetry

  • Problem solved immediately, pumps now start and stop at the desired level consistently on every pump cycle 

  • Projected ROI (return on investment) a matter of months as a result of robust and reliable level detection eliminating wasted energy from false ultrasonic high level causing pumps to run on and on at low level  

FOGRod 2

CUSTOMER:   ENVIRONMENT AGENCY, ENGLAND

 

FLOOD ALLEVIATION PUMP STATION RESILIENCE BOOST

 

10 Electrode FOGRod + Liquid Indicator Transmitter

Retrofitted in pump station in under 4 hours

 

  • A full redundant control system to sanity check the RADAR primary control system

  • 10 relay outputs available for redundant pump control

  • 2 failsafe fault outputs

  • 4-20mA output to compare water level reading with existing radar level device on SCADA

  • Mains failure protection. Schneider 500VA Easy UPS installed to give approx 8 hours of back-up in the event of power failure to keep the level reading visible on telemetry

  • Redundant failsafe high level alarm

FOGRod 3


 

CUSTOMER:   WATER UTILITY, ENGLAND

LARGE WASTEWATER PUMP STATION RESILIENCE PROJECT

 

10 Electrode FOGRod + 3rd Party Conductive Level Relays
 

  • Replace low level alarm & dry run ball float to prevent pollution incidents caused by false low level alarms

  • Wet well zone 2 hazardous area so water utility standard intrinsically safe hawker conductivity relays utilised

  • Ensure the pump dry run protection operating level is ultra-reliable and repeatable always at the same point in the wet well

  • Implement simple redundant pump  control system to operate on failure of the ultrasonic controller (LOE at high level)

  • Site monitored closely for 4 months post-install, previous regular false low level & dry run pump protection inhibits eliminated 



 

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FOGRod 4

 

CUSTOMER:   WATER UTILITY, ENGLAND

SMALL WASTEWATER PUMP STATION FOGRod CONTROL SYSTEM

 

3 Electrode FOGRod + Ball Float Replacement Retrofit Kit
 

  • Replace ball float control system to increase resilience in newly adopted waste water pump station

  • Quick FOGRod retrofit box with 3 electrode FOGRod 

  • FOGRod retrofit box contains 2 x LLR-240 conductive level relays. 1 for pump control the other for high level alarm

 

FOGRod 5

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CUSTOMER:    ASP - MPC SERVICES (EAST MIDLANDS)

SMALL WASTEWATER PUMP STATION FOGRod + LIT RETROFIT

 

10 Electrode FOGRod + LIQUID INDICATOR TRANSMITTER
 

  • Replace ball float control system to increase site resilience as regular failures caused by ball floats tangling resulting in sewage back-up and overflows requiring expensive tanker visit

  • Installed January 2020 has eliminated emergency service calls, sewage flooding and tanker visits 

 

 

GuardWorks 1


WATER UTILITY, ENGLAND

WWTW FILTER BED ROTATING ARM FAILURE TO TELEMETRY
 

  • Transmit 4 x digital alarms from a site with NO MAINS POWER over 700m through thick woodland to the nearest WWTW telemetry outstation

  • Installed and operational in a day

  • Zero ongoing costs, no monthly fees, no IT connection as simple LoRa based back to back radio system

  • UK Designed and manufactured for a local Water Utility

 

VOICE OF THE CUSTOMER

Finally, it is possible to monitor Descriptive STW sites cheaply and reliably, permitting a real-time response to problems, and facilitating data and performance metrics gathering for the first time. From a compliance perspective, we’ve never had this level of confidence in our Descriptive STW systems. Operationally, we’re saving substantially by reducing or eliminating the need for daily or weekly human inspection. GuardWorks is a no-brainer.”

 OPERATIONAL TECHNOLOGY MANAGER, UK WATER UTILITY