Steve's FlowSensing booklet 5-22-18

FLOW SENSING  FOR IRRIGATION SYSTEMS EMERGENCY WATER SHUT‐OFF SYSTEM AND WATER USE TRACKING 4-6-18 PRESENTED BY STEVE ROGERS, GS BROTHERS

Track irrigation water usage; monitor conservation  program progress Controller carries out pre‐programmed actions to  diagnose the high or low  flow condition and  shutdown the problem water source or zone valves Controller alerts personnel to ruptured mainlines, broken sprinklers, stuck  open valves, and other flow problems. Limits liability and costs associated with by broken  pipes, stuck valves, water  loss, and unauthorized  water use BENEFITS OF FLOW SENSING PRESENTED BY STEVE ROGERS, GS BROTHERS

FLOW SENSORS FOR IRRIGATION SYSTEMS FLOW SENSORS • The flow sensor sends a digital pulse to the ESP‐ LXMEF irrigation controller, and the controller  interprets the information to measure water use, and  quickly reacts to problems by automatically shutting  off the backflow or a particular irrigation valve. • Golf courses have been using flow sensors and  controllers that monitor flow for years, but now this  technology has become very affordable for  commercial properties, homeowner associations, etc.

FLOW SENSING TERMINOLOGY • ESP‐LX Series Controller with  FloWatch  flow sensing features • Master valve A master valve installed at the backflow and keeps water off except during irrigation cycle. A master valve will prevent major water loss due to a leaky valve or ruptured mainline. • Flow Sensor A flow sensor constantly monitors for low flow and excess flow conditions caused by broken lines or heads, and works with the master valve to automatically shut down the problem area. PRESENTED BY STEVE ROGERS, GS BROTHERS

ESP-LX SERIES CONTROLLERS WITH FLOWATCH Flow Smart Module PRESENTED BY STEVE ROGERS, GS BROTHERS

ESP-LXMEF CONTROLLER FLOW SENSOR/MASTER VALVE WIRING ESP-LXMEF Station Station 3 Wire + Common Controller Module Station 2 Wire + Common Station 1 Wire + Common FSM-LXME Flow Smart Module Valve 3 MV Wire + Common PE-Cable Valve 2 Flow Valve 1 Sensor Master Valve PRESENTED BY STEVE ROGERS, GS BROTHERS

Learn Flow Utility - Automatically runs each irrigation station and records the normal flow rate SEEF - Seek and Eliminate Excessive Flow SELF - Seek and Eliminate Low Flow Master Valve Water Window - Utility to prevent manual watering from being diagnosed as a high flow condition Flow Alarms - Controller Alarm light is illuminated when a flow alarm condition exists and screen messaging provides the problem details (date, time, flow condition) Flow Logs - Controller totalizes system flow for this month and last month, and last 30 days and prior 30 days FLOW SENSING TERMINOLOGY PRESENTED BY STEVE ROGERS, GS BROTHERS

LEARN FLOW OPERATION Learned Flow Meter Station 1 Learned Flow Flow Rate Rate Recorded as 50 25 GPM = 25 GPM 50 75 25 100 0 Master Station 1 On Valve 25 GPM Open Flow Rate POC MV 12 34 56 Water Flow Source Sensor Operation: Include only stations with programmed runtime. Turn on each station for 5 minutes or until flow stabilizes for at least 2 minutes. Record stabilized flow or highest flow in the last minute of Learn Flow test. PRESENTED BY STEVE ROGERS, GS BROTHERS

Learned Flow Meter LEARN FLOW OPERATION Flow Rate 50 Station 2 Learned Flow = 30 GPM 50 75 Rate Recorded as 30 GPM 25 100 0 Master Station 2 On Valve 30 GPM Open Flow Rate POC MV 123 4 56 Water Flow Source Sensor Operation: Repeat for all remaining stations in test. PRESENTED BY STEVE ROGERS, GS BROTHERS

NORMAL OPERATION - NO STATIONS ACTIVE Expected Flow Meter Real-Time Flow Rate Flow Rate 50 = 0 GPM = 0 GPM 50 75 1 25 100 0 Master No Stations On Valve 2 34 5 Closed POC MV 6 Water Flow Source Sensor Action: No action needed. PRESENTED BY STEVE ROGERS, GS BROTHERS

NORMAL SINGLE STATION OPERATION Flow Meter Expected 50 Real-Time Flow Rate 50 75 Flow Rate = 35 GPM 25 100 = 37 GPM 0 Master Station 5 On Valve 35 GPM Learned Open Flow Rate POC MV 1 2 34 56 Water Flow Source Sensor Action: No action taken. Flow has not exceeded SEEF Threshold limits. PRESENTED BY STEVE ROGERS, GS BROTHERS

NORMAL MULTI-STATION OPERATION Flow Meter 60 GPM Expected 50 Real-Time Flow Rate 50 75 Flow Rate = 62 GPM = 60 GPM 25 100 0 Station 1 On 35 GPM Learned Master Station 6 On Valve Flow Rate 25 GPM Learned Open Flow Rate POC MV 1 2 34 56 Water Flow Source Sensor Action: No action taken. Flow has not exceeded SEEF Threshold limits. PRESENTED BY STEVE ROGERS, GS BROTHERS

MANUAL MV WATER WINDOW Expected Flow Meter Real-Time MV Manual Water Window Flow Rate Flow Rate Programmed for: = 25 GPM 50 = 10 GPM 50 75 Max. Additional Flow 25 GPM, 8am to 4pm, Mon-Fri 25 100 0 No Stations On Master Manual 2 34 56 Valve Watering Open 10 GPM POC MV 1 Water Flow Source Sensor Action: No action taken. Flow is within MV Manual Water Window Max. Additional Flow limits. PRESENTED BY STEVE ROGERS, GS BROTHERS

SEEF - LATERAL LINE BREAK Expected Flow Meter Real-Time Station 5 On Flow Rate Flow Rate 35 GPM Learned 50 = 35 GPM 50 75 = 60 GPM Flow Rate +25 GPM Pipe Break Flow 25 100 0 Master Valve POC MV 1 2 34 56 Water Flow Source Sensor Action: Pause Station 5, close MV, wait for Pipe Settling Time. Turn on MV only. If zero Break 25 GPM flow detected resume Station 5 with open MV. If flow is still above SEEF Threshold after Settling Time quarantine Station 5 and post Lateral Line Break Alarm. PRESENTED BY STEVE ROGERS, GS BROTHERS

SEEF - MAINLINE BREAK Flow Meter Expected 50 Real-Time Station 5 On Flow Rate 50 75 Flow Rate 35 GPM Learned = 35 GPM 25 100 = 90 GPM Flow Rate 0 Master Mainline Break 55 Valve gallons per min Open POC MV Pipe 1 2 34 56 Water Flow Source Sensor Action: Pause Station 5, close MV, wait for Settling Time. Turn on MV only. If flow detected after Settling Time turn off MV, quarantine all stations on this FloZone, and post Mainline Break Alarm. PRESENTED BY STEVE ROGERS, GS BROTHERS

SEEF - FALSE ALARM Flow Meter Expected 50 75 Real-Time Flow Rate 50 Flow Rate = 35 GPM 25 100 = 60 GPM Station 5 On 0 35 GPM Learned Flow Rate but Station 4 Master valve has not yet closed Valve POC MV 1 2 34 56 Water Flow Source Sensor Action: Pause Station 5, close MV, wait for Settling Time. Turn on MV only. If zero flow detected resume Station 5. If valve on Station 4 closes during Settling Time the flow rate will now be the expected rate. A False Alarm event log is posted. PRESENTED BY STEVE ROGERS, GS BROTHERS

SELF - LOW STATION FLOW RATE Flow Meter Expected 50 Real-Time Flow Rate 50 75 Flow Rate = 35 GPM = 10 GPM 25 100 0 Station 5 On 35 GPM Learned Flow Rate Master Valve Actual Flow Rate = 10 POC MV 1 2 34 56 Water Flow Source Sensor Action: If flow is still below Low Flow Threshold after Settling Time pause station 5, turn off MV, wait for Settling time. Resume Station 5, open MV. If flow is still below Low Flow Threshold quarantine valve, post Low Flow Alarm PRESENTED BY STEVE ROGERS, GS BROTHERS

SELF - VALVE FAILS TO OPEN Flow Meter Expected 50 Real-Time Flow Rate 50 75 Flow Rate = 35 GPM = 0 GPM 25 100 0 Station 5 On 35 GPM Learned Flow Rate Master Valve but valve fails to open POC MV 1 2 34 56 Water Flow Source Sensor Action: If flow is still below Low Flow Threshold after Settling Time pause station 5, turn off MV, wait for Settling time. Resume Station 5, open MV. If flow is above Low Flow Threshold, post SELF False Alarm and resume operation. PRESENTED BY STEVE ROGERS, GS BROTHERS

FLOW ALARMS • Controller Alarm Light will be On • Turn Dial to Auto • Select Alarm Button (will show Flow Alarm) ALARM PRESENTED BY STEVE ROGERS, GS BROTHERS

REVIEW/CLEAR FLOW ALARMS • Review Station & Mainline Flow Alarms • Clear Flow Alarms - Required to Manually Re-Enable MV and Station Valves if you did not use the Delay to Re-Enable Feature PRESENTED BY STEVE ROGERS, GS BROTHERS

FLOW LOGS • Logs total accumulated flow for: - This Month & Last Month - Last 30-Days & Previous 30-Days PRESENTED BY STEVE ROGERS, GS BROTHERS

VIEW CURRENT FLOW • Current Flow Rate • Expected Flow Rate • Deviation % Between Current & Expected Flow Rate PRESENTED BY STEVE ROGERS, GS BROTHERS

THANK YOU!