MaxiDive Commercial

22/09/2026

Underwater Drain Plug Inspection Thailand

Drain plugs are small components, but their condition should be documented carefully during an underwater hull inspection.

A professional inspection can assess:

⚓ Plug position and security
⚓ Visible retaining components
⚓ Signs of leakage
⚓ Corrosion
⚓ Coating condition
⚓ Marine growth
⚓ Surrounding hull plating
⚓ Mechanical contact marks

Overview and close-up underwater imagery provide technical teams with clear evidence of both the drain plug and the surrounding hull structure.

Drain plug areas can also be particularly relevant during flat-bottom inspections or following suspected grounding or bottom contact.

Professional photo and video documentation creates a useful reference for maintenance planning and future condition comparison.

Read more: https://www.maxidive.com/post/underwater-drain-plug-inspection-thailand
MaxiDive — We work under pressure.

Underwater drain plug inspection helps vessel managers document plug security, visible leakage indications, corrosion, coating condition, marine growth and the surrounding hull structure while the vessel remains afloat.

21/09/2026

Underwater EM Log Inspection at Laem Chabang Port 🇹🇭

MaxiDive completed a professional underwater inspection of a hull-mounted EM log system for a commercial vessel at Laem Chabang Port.

The commercial diving team documented:

⚓ External sensor condition
⚓ Secure positioning
⚓ Mounting area
⚓ Surrounding hull plating
⚓ Coating condition
⚓ Visible external abnormalities
⚓ Final underwater condition

Sea conditions were calm, with underwater visibility of approximately one metre.

Close-range underwater photo and video documentation provided the vessel’s technical team with a clear visual reference of the speed log installation area.

A subsequent operational check confirmed that the speed log system was functioning.

Underwater visual inspection provides evidence of external physical condition, while calibration and internal electronic performance require separate technical verification.

Read more: [ARTICLE LINK]

MaxiDive — We work under pressure.

MaxiDive completed an underwater EM log inspection at Laem Chabang Port, documenting the external condition, secure positioning and surrounding hull area of a hull-mounted speed log unit following technical work.

18/09/2026

Rope Guard & Stern Tube Inspection Thailand

The area between the vessel’s hull and propeller contains components that are difficult to assess from above the waterline.

A professional underwater inspection can document:

⚓ Rope guard condition
⚓ Rope, net and fishing-line entanglement
⚓ Visible propeller shaft
⚓ Stern tube outer area
⚓ External seal region
⚓ Welds and structural supports
⚓ Corrosion and coating condition
⚓ Propeller hub and nearby components
⚓ Mechanical contact or deformation

The rope guard protects the shaft area from ropes and debris, but its design varies between vessels.

During underwater inspection, commercial divers document both the overall assembly and individual areas such as welds, supports, visible shaft surfaces and external seal regions.

If no visible leakage is observed, this provides useful external evidence — but does not replace internal seal or stern tube testing.

Professional underwater photo and video documentation provides vessel managers and technical superintendents with a clear reference for condition assessment and maintenance planning.

Read more: https://www.maxidive.com/post/rope-guard-inspection-thailand-stern-tube-shaft

MaxiDive — We work under pressure.

17/09/2026

Underwater Hull Inspection & Propeller Polishing at Koh Si Chang Anchorage 🇹🇭

MaxiDive recently completed a comprehensive underwater operation for a commercial vessel at Koh Si Chang Anchorage.

The scope included:

⚓ Underwater hull inspection
⚓ Sea chest grating inspection
⚓ Transducer inspection
⚓ ICCP condition assessment
⚓ Propeller inspection and polishing
⚓ Rudder inspection
⚓ Selected underwater cleaning
⚓ Technical photo and video documentation

The accessible vertical sides and flat-bottom areas were found in generally very good visible condition, with localized abrasion documented around the bulbous bow.

Sea chest gratings appeared secure, transducer areas were documented, and accessible ICCP components showed no significant visible mechanical damage.

The propeller assembly was inspected before polishing. No significant contact damage, cavitation-related damage or rope entanglement was observed.

Professional underwater propeller polishing was then completed, with the finished surface assessed at approximately Grade A on the Rubert Scale.

The rudder assembly, visible anodes and associated fittings were also inspected and documented.

The complete underwater photo and video record provides the vessel’s technical team with a practical condition reference for maintenance planning and future comparison.

Read more: https://www.maxidive.com/post/underwater-hull-inspection-thailand-propeller-polishing-koh-si-chang

MaxiDive — We work under pressure.

16/09/2026

Underwater Transducer Inspection Thailand

Speed log, echo sounder and other hull-mounted sensors operate continuously below the waterline, where they are exposed to marine growth, coating deterioration and possible mechanical contact.

A professional underwater inspection can document:

⚓ Sensor face condition
⚓ Mounting plate and retaining ring
⚓ Visible fasteners
⚓ Marine growth
⚓ Surrounding hull coating
⚓ Corrosion and exposed steel
⚓ Impact marks
⚓ Possible external displacement

These areas are particularly important to inspect after grounding or suspected bottom contact.

Underwater visual inspection documents the external physical condition of the sensor and installation area. It does not replace onboard electronic testing or calibration.

Overview photographs, close-up images and underwater video provide vessel managers and technical superintendents with a clear technical reference for further assessment and maintenance planning.

Read more: https://www.maxidive.com/post/underwater-transducer-inspection-thailand

MaxiDive — We work under pressure.

15/09/2026

Post-Grounding Underwater Inspection Thailand

After grounding or suspected bottom contact, visible condition above the waterline may tell only part of the story.

A professional underwater inspection can document the areas most exposed to contact, including:

⚓ Bulbous bow and forward bottom
⚓ Flat-bottom plating
⚓ Keel and bilge keels
⚓ Sea chest gratings
⚓ Transducers and underwater sensors
⚓ Propeller blades and hub
⚓ Stern components
⚓ Rudder assembly

Commercial divers look for visible indications such as coating abrasion, scraping, exposed steel, dents, deformation, disturbed marine growth and abnormal weld condition.

Professional documentation should include both overview and close-up photo/video evidence so vessel managers and technical superintendents can understand the location and extent of each observation.

Underwater visual inspection provides important evidence while the vessel remains afloat and can help determine whether additional technical assessment should be considered.

Read more: https://www.maxidive.com/post/post-grounding-inspection-thailand

MaxiDive — We work under pressure.

A post grounding underwater inspection provides direct visual evidence of the vessel’s submerged condition after confirmed or suspected bottom contact, helping technical teams document hull plating, appendages, propulsion components and rudder condition before further assessment.

14/09/2026

Underwater Inspection at Kerry Siam Sea Port, Thailand

MaxiDive completed a professional underwater condition inspection for a commercial vessel at Kerry Siam Sea Port.

The commercial diving team documented:

⚓ Hull plating and bulbous bow
⚓ Flat bottom and weld seams
⚓ Bilge keels
⚓ Sea chest gratings
⚓ Transducers and discharges
⚓ ICCP components
⚓ Propeller blades, hub and boss
⚓ Stern tube and rope guard
⚓ Rudder assembly and niche areas

The hull showed generally light marine growth, while localized coating abrasion and exposed steel were documented around the bow area.

Accessible flat-bottom areas showed no visible grounding indications or significant structural abnormalities.

The propeller assembly showed heavy marine growth, with surface roughness assessed at approximately Grade E on the Rubert Scale. No significant visible cracking, denting or cavitation damage was identified on the accessible blade areas.

ICCP components appeared in good visible condition, and the rudder coating was generally satisfactory despite substantial marine growth in the rudder and niche areas.

Technical underwater photo and video documentation provides vessel managers with a practical condition reference for maintenance planning and future comparison.

Read more:

MaxiDive completed a professional underwater inspection at Kerry Siam Sea Port, documenting hull plating, appendages, ICCP components, propeller assembly and rudder condition through underwater visual inspection and technical photo/video records.

11/09/2026

What should an underwater scrubber discharge inspection document?

For ship agents and vessel managers, useful findings cover the external outlet, accessible fittings and surrounding hull coating—with clear photographs and a record of inspection limitations.

Our latest MaxiDive guide explains what to look for:

• Visible deterioration at the outlet perimeter
• Coating loss and exposed metal around the opening
• External fitting condition, where applicable
• Marine growth and restricted views
• Documentation needed for technical follow-up

External appearance alone cannot confirm internal pipe condition, valve integrity or washwater compliance.

Read the guide: https://www.maxidive.com/post/scrubber-overboard-discharge-inspection-thailand

Coordinating an inspection in Thailand? Send the proposed location, attendance window and inspection requirements to [[email protected]](mailto:[email protected]).

What should ship agents and vessel managers request when arranging a scrubber discharge inspection? Explore external condition checks, surrounding hull coating, reporting requirements and the limits of visual assessment.

10/09/2026

What should a bow thruster inspection show a vessel manager?

A useful inspection record covers the accessible tunnel surfaces, blades and hub, protective grids and anodes where fitted. It also identifies areas that could not be assessed.

Our latest article explains what to document:

• Tunnel coating loss, visible corrosion and deformation
• Blade edge damage and visible obstructions
• Grid condition and attachment areas
• Anode depletion and visible attachment condition
• Photographs, video and access limitations

Visual findings support technical assessment and maintenance planning. They do not independently confirm internal machinery condition or operational readiness.

Read the MaxiDive guide:
https://www.maxidive.com/post/underwater-bow-thruster-inspection-thailand
For inspection enquiries: [email protected]

Learn what an underwater bow thruster inspection can reveal about tunnel coating, blades, protective grids and anodes, and which findings require further technical assessment.

09/09/2026

Buy-and-Sell Underwater Inspection at Koh Si Chang Anchorage 🇹🇭

When a commercial vessel changes ownership, underwater condition is an important part of technical due diligence.

MaxiDive recently completed a professional underwater condition survey at Koh Si Chang Anchorage, documenting:

⚓ Hull plating and bulbous bow
⚓ Flat bottom
⚓ Bilge keels
⚓ Sea chest gratings
⚓ Underwater fittings
⚓ Propeller assembly
⚓ Boss cap and rope guard
⚓ Rudder assembly
⚓ Sacrificial anodes

The inspection documented visible abrasion around the bulbous bow and contact-related damage on a bilge keel area.

The flat bottom showed no visible grounding indications in the accessible areas examined.

Propulsion components showed no significant visible abnormalities or entanglement, while the rudder assembly and visible anodes were also documented for technical review.

A loose sea chest grating fastening and a minor keeper-related observation were also recorded.

Buy-and-sell underwater inspection provides buyers, sellers and technical representatives with direct visual evidence below the waterline before important commercial decisions are made.

Read more: https://www.maxidive.com/post/buy-and-sell-underwater-inspection-thailand-koh-si-chang

MaxiDive — We work under pressure.

MaxiDive completed a buy-and-sell underwater inspection at Koh Si Chang Anchorage, documenting hull plating, appendages, propeller and rudder condition to provide independent visual evidence for technical due diligence.