Product · Plant model
The process and the equipment of your plant, in one model.
On one side, units and streams. On the other, buildings, positions and equipment. Between them, the link that says which unit each piece of equipment serves.
Process unit
Inlet pumping station
WW-U-INL
Served byWW-P-INL-01 WW-P-INL-02 WW-MCC-01
Process unit
Screening
WW-U-SCR
Served byWW-SCR-01 WW-SCR-02
Process unit
Grit and grease removal
WW-U-GRT
Served byWW-GC-01
Process unit
Biological treatment
WW-U-BIO
Child unitsAeration train 1, Aeration train 2
Served byWW-BL-01 WW-BL-02 WW-BL-03 WW-MCC-02
Process unit
Aeration train 1
WW-U-BIO-1
Part ofBiological treatment
Child unitsAnoxic zone 1, Aeration basin 1
Served byWW-P-RAS-01
Process unit
Anoxic zone 1
WW-U-ANX-1
Part ofAeration train 1
Served byWW-MX-01
Process unit
Aeration basin 1
WW-U-AER-1
Part ofAeration train 1
From data source · WW-MP-DO-1
Process unit
Aeration train 2
WW-U-BIO-2
Part ofBiological treatment
Child unitsAnoxic zone 2, Aeration basin 2
Served byWW-P-RAS-02
Process unit
Anoxic zone 2
WW-U-ANX-2
Part ofAeration train 2
Served byWW-MX-02
Process unit
Aeration basin 2
WW-U-AER-2
Part ofAeration train 2
From data source · WW-MP-DO-2
Process unit
Secondary clarification
WW-U-SEC
Child unitsSecondary clarifier 1, Secondary clarifier 2
Process unit
Secondary clarifier 1
WW-U-SEC-1
Part ofSecondary clarification
Served byWW-CL-01
Process unit
Secondary clarifier 2
WW-U-SEC-2
Part ofSecondary clarification
Served byWW-CL-02
Process unit
Disinfection
WW-U-DIS
Served byWW-DP-02
Process unit
Gravity thickening
WW-U-THK
Part ofSludge line
Served byWW-P-WAS-01
Process unit
Sludge dewatering
WW-U-DEW
Part ofSludge line
Served byWW-SP-01 WW-DP-01
Process stream
Raw influent
WW-S-INF
KindInfluent
Inlet pumping stationScreening
Process stream
Screened flow
WW-S-SCR
KindMain flow
ScreeningGrit and grease removal
Process stream
Pretreated flow
WW-S-PRE
KindMain flow
Grit and grease removalBiological treatment
Process stream
Mixed liquor, train 1
WW-S-ML-1
KindMain flow
Aeration basin 1Secondary clarifier 1
Process stream
Clarified effluent
WW-S-SEC
KindMain flow
Secondary clarificationDisinfection
Process stream
Final effluent
WW-S-EFF
KindEffluent
DisinfectionOutfall
Process stream
Return activated sludge, train 1
WW-S-RAS-1
KindReturn sludge (RAS)
Secondary clarifier 1Anoxic zone 1
Process stream
Waste activated sludge
WW-S-WAS
KindWaste sludge (WAS)
Secondary clarificationGravity thickening
Process stream
Thickened sludge
WW-S-THK
KindSludge
Gravity thickeningSludge dewatering
Process stream
Air to aeration basin 1
WW-S-AIR-1
KindProcess air
WW-U-BLWAeration basin 1
Process stream
Internal recycle, train 1
WW-S-IR-1
KindInternal recycle
Aeration basin 1Anoxic zone 1
Process stream
Hypochlorite dosing
WW-S-NAOCL
KindChemical feed
WW-DP-02Disinfection
Position (functional location)
Inlet pump 1
WW-P-INL-01
ServesInlet pumping station
Building / areaInlet pump house
Operational criticalityHigh
Installed equipmentWW-AS-1810
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Inlet MCC
WW-MCC-01
ServesInlet pumping station
Building / areaInlet pump house
Operational criticalityHigh
Installed equipmentWW-AS-6679
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Bar screen 1
WW-SCR-01
ServesScreening
Building / areaPretreatment building
Operational criticalityHigh
Installed equipmentWW-AS-4450
Open work orders
No open work orders
Last failure
2 Jun 2026 · Rake jammed
Position (functional location)
Grit classifier
WW-GC-01
ServesGrit and grease removal
Building / areaPretreatment building
Operational criticalityMedium
Installed equipmentWW-AS-8556
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Anoxic mixer 1
WW-MX-01
ServesAnoxic zone 1
Building / areaBiological basins area
Operational criticalityMedium
Installed equipmentWW-AS-1293
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Aeration blower 1
WW-BL-01
ServesBiological treatment
Building / areaBlower building
Operational criticalityHigh
Installed equipmentWW-AS-6070
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Aeration blower 2
WW-BL-02
ServesBiological treatment
Building / areaBlower building
Operational criticalityHigh
Installed equipmentWW-AS-6071
Open work orders
Last failure
21 Aug 2026 · High bearing temperature
Position (functional location)
Aeration blower 3 (standby)
WW-BL-03
ServesBiological treatment
Building / areaBlower building
Operational criticalityMedium
Installed equipmentWW-AS-6072
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Clarifier 1 scraper bridge
WW-CL-01
ServesSecondary clarifier 1
Building / areaSecondary clarifier area
Operational criticalityHigh
Installed equipmentWW-AS-2591
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Clarifier 2 scraper bridge
WW-CL-02
ServesSecondary clarifier 2
Building / areaSecondary clarifier area
Operational criticalityHigh
Installed equipmentWW-AS-2592
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
RAS pump 1
WW-P-RAS-01
ServesAeration train 1
Building / areaSludge pump station
Operational criticalityHigh
Installed equipmentWW-PU-0587 · Pump package B
Open work orders
Last failure
14 Aug 2024 · Seal leak
Position (functional location)
RAS pump 2
WW-P-RAS-02
ServesAeration train 2
Building / areaSludge pump station
Operational criticalityHigh
Installed equipmentWW-AS-4934
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
WAS pump
WW-P-WAS-01
ServesGravity thickening
Building / areaSludge pump station
Operational criticalityMedium
Installed equipmentWW-AS-5688
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Screw press
WW-SP-01
ServesSludge dewatering
Building / areaDewatering building
Operational criticalityMedium
Installed equipmentWW-AS-3091
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Hypochlorite dosing pump
WW-DP-02
ServesDisinfection
Building / areaDewatering building
Operational criticalityMedium
Installed equipmentWW-AS-1277
Open work orders
No open work orders
Last failure
No recorded failure
Process unit
Intake and raw water pumping
WT-U-INT
Served byWT-P-RW-01 WT-P-RW-02 WT-MCC-01
Process unit
Rapid mix and coagulant dosing
WT-U-RMX
Served byWT-DP-01 WT-DP-03 WT-MX-01
Process unit
Flocculation
WT-U-FLC
Served byWT-FD-01
Process unit
Sedimentation
WT-U-SED
Served byWT-SC-01
Process unit
Sand filters
WT-U-FLT
Child unitsFilter 1, Filter 2, Filter 3, Filter 4
Served byWT-P-BW-01 WT-P-BW-02 WT-BL-AS-01
Process unit
Filter 1
WT-U-FLT-1
Part ofSand filters
Process unit
Filter 2
WT-U-FLT-2
Part ofSand filters
Served byWT-V-F2-IN
Process unit
Filter 3
WT-U-FLT-3
Part ofSand filters
Process unit
Filter 4
WT-U-FLT-4
Part ofSand filters
Process unit
Disinfection (chlorination)
WT-U-DIS
Served byWT-CL-01
Process unit
Treated water reservoir
WT-U-CWT
From data source · WT-MP-CL
Process unit
Transfer pumping station
WT-U-TPS
Served byWT-P-HL-01 WT-P-HL-02
From data source · WT-MP-P-TPS
Process unit
Sludge thickening
WT-U-THK
Part ofSludge line
Process unit
Drying beds
WT-U-DRB
Part ofSludge line
Process stream
Raw water
WT-S-RAW
KindInfluent
Intake and raw water pumpingRapid mix and coagulant dosing
Process stream
Coagulated water
WT-S-FLC
KindMain flow
Rapid mix and coagulant dosingFlocculation
Process stream
Flocculated water
WT-S-SED
KindMain flow
FlocculationSedimentation
Process stream
Settled water
WT-S-SETTLED
KindMain flow
SedimentationSand filters
Process stream
Filtered water
WT-S-FILT
KindMain flow
Sand filtersDisinfection (chlorination)
Process stream
Treated water
WT-S-TW
KindEffluent
Treated water reservoirTransfer pumping station
Process stream
Coagulant dosing
WT-S-COAG
KindChemical feed
WT-DP-03Rapid mix and coagulant dosing
Process stream
Chlorine dosing
WT-S-CL
KindChemical feed
WT-CL-01Disinfection (chlorination)
Process stream
Backwash water
WT-S-BW
KindBackwash water
Treated water reservoirSand filters
Process stream
Air scour
WT-S-AIR
KindProcess air
WT-BL-AS-01Sand filters
Process stream
Settled sludge
WT-S-SLG
KindSludge
SedimentationSludge thickening
Process stream
Thickened sludge
WT-S-THK
KindSludge
Sludge thickeningDrying beds
Position (functional location)
Raw water pump 1
WT-P-RW-01
ServesIntake and raw water pumping
Building / areaRaw water pump house
Operational criticalityHigh
Installed equipmentWT-AS-2619
Open work orders
Last failure
No recorded failure
Position (functional location)
Raw water pump 2
WT-P-RW-02
ServesIntake and raw water pumping
Building / areaRaw water pump house
Operational criticalityHigh
Installed equipmentWT-AS-2620
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Intake MCC
WT-MCC-01
ServesIntake and raw water pumping
Building / areaRaw water pump house
Operational criticalityHigh
Installed equipmentWT-AS-3346
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Coagulant dosing pump 3
WT-DP-03
ServesRapid mix and coagulant dosing
Building / areaChemical building
Operational criticalityHigh
Installed equipmentWT-AS-5235
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Coagulant dosing pump 1
WT-DP-01
ServesRapid mix and coagulant dosing
Building / areaChemical building
Operational criticalityHigh
Installed equipmentWT-AS-5233
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Chlorinator
WT-CL-01
ServesDisinfection (chlorination)
Building / areaChemical building
Operational criticalityHigh
Installed equipmentWT-AS-6548
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Flash mixer
WT-MX-01
ServesRapid mix and coagulant dosing
Building / areaFlocculation and settling area
Operational criticalityHigh
Installed equipmentWT-AS-5250
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Flocculator drive 1
WT-FD-01
ServesFlocculation
Building / areaFlocculation and settling area
Operational criticalityMedium
Installed equipmentWT-AS-9783
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Sedimentation scraper 1
WT-SC-01
ServesSedimentation
Building / areaFlocculation and settling area
Operational criticalityMedium
Installed equipmentWT-AS-6765
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Backwash pump 1
WT-P-BW-01
ServesSand filters
Building / areaFilter building
Operational criticalityHigh
Installed equipmentWT-AS-4283
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Backwash pump 2
WT-P-BW-02
ServesSand filters
Building / areaFilter building
Operational criticalityHigh
Installed equipmentWT-PU-0233
Open work orders
Last failure
3 Jul 2024 · Seal leak
Position (functional location)
Air scour blower
WT-BL-AS-01
ServesSand filters
Building / areaFilter building
Operational criticalityMedium
Installed equipmentWT-AS-3890
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
Filter 2 inlet valve
WT-V-F2-IN
ServesFilter 2
Building / areaFilter building
Operational criticalityMedium
Installed equipmentWT-AS-5990
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
High-lift pump 1
WT-P-HL-01
ServesTransfer pumping station
Building / areaTransfer pump house
Operational criticalityHigh
Installed equipmentWT-AS-6708
Open work orders
No open work orders
Last failure
No recorded failure
Position (functional location)
High-lift pump 2
WT-P-HL-02
ServesTransfer pumping station
Building / areaTransfer pump house
Operational criticalityHigh
Installed equipmentWT-AS-6709
Open work orders
No open work orders
Last failure
No recorded failure
01 · Process view
Units within units, and streams with a direction.
Biological treatment is several aeration trains, and each train has an anoxic zone and an aeration basin. Return sludge, waste sludge, air and chemicals are each their own stream, with a clear from and to.
Process units
- Biological treatmentWW-U-BIO
- Aeration train 1WW-U-BIO-1
- Anoxic zone 1WW-U-ANX-1
- Aeration basin 1WW-U-AER-1
- Aeration train 2WW-U-BIO-2
- Secondary clarificationWW-U-SEC
- Secondary clarifier 1WW-U-SEC-1
- Secondary clarifier 2WW-U-SEC-2
- Sludge lineWW-U-SLG
- Gravity thickeningWW-U-THK
- Sludge dewateringWW-U-DEW
Streams
- Main flowAeration basin 1Secondary clarifier 1
- Return sludge (RAS)Secondary clarifier 1Anoxic zone 1
- Waste sludge (WAS)Secondary clarificationGravity thickening
- Process airDosing pumpAeration basin 1
- Internal recycleAeration basin 1Anoxic zone 1
- Chemical feedDosing pumpDisinfection
02 · Physical view
Building, position, equipment, and its parts.
A position is the fixed installed location, like “RAS pump 1”. The equipment installed there has its own composition: pump, motor, coupling.
03 · Position and equipment
The pump changes. The position and both histories stay.
In March 2026 pump A went to the workshop for an overhaul and pump B was installed at the same position. The position’s history continues unbroken, and each pump carries its own history with it.
The pump position stays put; the pump in it may change. Each keeps its own history.
- 7 Oct 2026Seal kit replaced · WO-1042WW-PU-0587
- 12 Mar 2026Pump B installed at the same positionWW-PU-0587
- 12 Mar 2026Pump A removed for workshop overhaulWW-PU-0412
- 14 Aug 2024Mechanical seal replacedWW-PU-0412
- 20 Nov 2022Coupling-end bearing replacedWW-PU-0412
- 6 May 2019Pump A installed at the positionWW-PU-0412
04 · Drawings
The P&ID you already have, now clickable.
Upload P&IDs, PFDs and site layouts as they are. Place points on the drawing, each linked to a real record: equipment, unit, stream or measurement point.
05 · Measurement points
What is measured, where, and in what unit.
Each measurement point belongs to exactly one unit, stream, position or piece of equipment. Manual readings are first-class; a data source, if there is one, is mapped to the point explicitly.
| Point | On | Unit | Source | 24 h |
|---|---|---|---|---|
| Dissolved oxygen, aeration basin 1WW-MP-DO-1 | WW-U-AER-1 | mg/L | Source | |
| Dissolved oxygen, aeration basin 2WW-MP-DO-2 | WW-U-AER-2 | mg/L | Source | |
| MLSS, aeration basin 1WW-MP-MLSS-1 | WW-U-AER-1 | mg/L | Manual | |
| Inlet flowWW-MP-Q-IN | WW-S-INF | m³/h | Source | |
| Effluent TSSWW-MP-TSS-OUT | WW-S-EFF | mg/L | Manual |
06 · QR tags
Scan the tag and the record opens.
Printed tags go on equipment, positions, measurement points or store shelves. A scan only finds the record; what the person can do stays exactly what their access allows.
07 · Classification and criticality
Group, class, type, and the operational criticality of each position.
Equipment classification has three levels. Operational criticality belongs to the position, not the pump that happens to be there today, because it comes from what that position does in the process.
Equipment classification
Operational criticality by position
Connections
Where this connects
The plant model is the context for all the work: work orders target a position or equipment, readings belong to measurement points, and failures are recorded with their effect on the process.
- Plant modelUnit, stream, position, equipment
- Work orderTarget: position or equipment
- Measurement pointReadings and process conditions
- Failure eventEffect on units and streams
Common questions
What if our equipment codes are different?
Keep your own codes. Waiotech takes the code from you and only checks it is unique within its category; the codes on this page are just samples.
Do we have to redraw our drawings?
No. Upload the P&ID or site layout you already have as an image or PDF, and place points on it that link to records. Later versions of the drawing are added as new revisions.
What’s the difference between a position and equipment?
A position is the fixed installed location, like “RAS pump 1”. Equipment is the machine itself, which can be replaced, sent to the workshop or installed elsewhere. Each has its own history, and they are linked.
If someone recommended Waiotech to you, the next step is a short conversation.
Tell us about your plant and how you work today, and we’ll show you Waiotech on work like yours.