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Ballast water treatment
BWTS
Alfa Laval PureBallast, Wärtsilä Aquarius, Optimarin, Hyde Guardian. UV lamp faults, sensor calibration, USCG compliance, IMO BWMS Code.
Service available at all US ports — 24/7 worldwide. Our next available technician contacts you within 1 hour.
Symptom checklist
What we hear from the bridge.
- ›UV transmittance below 50% on PureBallast 3 reactor
- ›Total residual oxidant (TRO) sensor drift on electro-chlorination
- ›Filter back-flush DP transmitter stuck at zero
- ›Operation locked due to power module fault on Wärtsilä Aquarius
- ›USCG sample port flow rate out of spec at deballast
- ›Self-cleaning filter motor overcurrent trip
Likely root causes
Where the fault usually lives.
- ›End-of-life UV lamp (10 000+ hours)
- ›Fouled UVT sensor lens
- ›TRO probe membrane fouled or expired
- ›VFD over-temperature due to engine-room ambient
- ›Air bubble in reactor confusing dose calculation
Equipment we bring
Calibrated test equipment, class-acceptable reports.
- Maker service laptop (PureBallast Service Tool, Aquarius Toolkit)
- Calibrated UVT reference cell
- TRO calibration solution kit
- Druck DPI 620 calibrator for DP transmitters
- FLIR T540 for reactor cabinet thermography
Reports compatible with DNV · BV · ABS · Lloyd's · TL · RINA · ClassNK · IRS.
Often needed together
Parts most often requested with this service.
- uv lamps
- tro sensors
- uvt sensors
- bwts vfds
FAQ
Common questions for this system.
- How long does a typical BWTS pre-survey attendance take?
- Approximately four to six hours per ballast pump line on a quiet vessel with co-operative crew. Plan a full day for a Panamax bulker with two ballast pumps and a parallel treatment skid.
- Can a ship's electrician do this without a class-experienced ETO?
- Procedural items (sample-point walks, BWMP documentation review, alarm exercise) sit within most ship's electrician scopes. UV intensity verification, TRO sensor calibration and indicative-analysis sampling typically need a marine ETO with current BWMS Code understanding and the right kit.
- Which class societies are we set up to write the report for?
- DNV, BV, ABS, Lloyd's Register, Türk Loydu, RINA, ClassNK and IRS. Each report is pre-formatted to the requesting society's template; the surveyor receives the package by email before the engineer leaves the gangway.
Have a vessel calling?
Three quick questions — port, when, contact. Our next available technician will contact you within 1 hour.