See What's Beneath the Surface
A remote inspection can provide valuable asset information before a client commits to cleaning, drain-down, entry or repair work.
Recorded evidence of what is actually there
Valmar uses ROV systems to visually inspect submerged and difficult-to-access areas and provide recorded evidence of conditions observed at the time of inspection. The asset stays in service where conditions permit, nobody enters the water, and the decision about what to do next is made from footage rather than from an assumption about what a tank of that age probably looks like inside.
Inspection can include
- Tank and reservoir floors
- Walls and visible lining surfaces
- Joints and penetrations
- Pipework and fittings
- Inlets and outlets
- Screens and grilles
- Submerged structures and components
- Sediment or sludge accumulation
- Debris and obstructions
- Visible corrosion, cracking, coating deterioration or other apparent defects where observable
Typical outputs
- High-definition inspection video
- Photographic records
- Before-and-after footage where cleaning is completed
- Sediment or sludge observations
- Visible-condition observations
- Identified areas requiring closer investigation
- Practical maintenance recommendations
- Asset-specific inspection report
ROV inspection is visual and observational. It does not replace structural engineering assessment, non-destructive testing, material testing or other specialist investigation where those are required to confirm the nature or severity of a defect.
More than a clean - evidence for better maintenance decisions
The value of remote inspection is the record it creates. Depending on the scope and visibility conditions, Valmar can provide information that supports maintenance planning, project records and future comparison: inspection video, before-and-after footage, photographs, sediment or sludge observations, cleaning records, visible-condition observations, areas requiring further investigation, maintenance recommendations, and asset-specific findings and limitations.
Reports clearly distinguish between observed conditions and conclusions that require specialist engineering, fire-system, water-quality or material assessment - so the record says what was seen, and says plainly where somebody else needs to look closer.
Ring 027 313 0280 or send us an enquiry to scope an inspection. The technology page describes the ROV systems we deploy.
A pitted, rust-stained elbow flange on a steel tank floor - the kind of finding that goes in the report as an area for closer investigation.
Inspection Questions
Can an ROV inspection confirm a structural defect?
It can identify visible signs that warrant further investigation, but visual ROV inspection does not replace structural engineering, non-destructive testing or material testing where these are required.
What if the water is too murky to see anything?
Visibility is a real limit and the report says so where it applied. The ROV carries its own lighting and a low-light camera, which handles most tanks and reservoirs; where visibility is genuinely poor the inspection records what could be observed and identifies what could not.
Do you provide video and reports?
Yes. Depending on scope and visibility, deliverables can include inspection video, photographs, before-and-after footage, observations, cleaning records and practical maintenance recommendations.
Other Services
Remote inspection and cleaning for drinking water, wastewater, fire water and industrial water assets across New Zealand. Every job starts with an inspection, so the method is chosen from what is actually inside the asset.
Drinking Water - VAC Boss
Potable-water ROV inspection and robotic sediment removal, with asset-specific hygiene, disinfection and water-quality controls. Read more
Wastewater - Sludge Boss
Remote inspection and sludge removal for wastewater tanks, ponds, lagoons, wet wells and treatment assets. Read more
Fire Water Tanks
Condition inspection, sediment assessment and cleaning options that support fire-water system maintenance and asset records. Read more
Industrial Water Infrastructure
Remote inspection and cleaning for process water, raw water, settling tanks and difficult-to-access submerged assets. Read moreNeed to know what is happening inside your tank or reservoir?
Start with an inspection. We can help establish the condition of the asset and recommend a practical next step based on what is actually found. Tell us what the asset is, roughly where it is and what you need to know, and we will come back to you.
027 313 0280- marcus@valmar.co.nz
- Based in Tauranga, Bay of Plenty - working across New Zealand
- Drinking water, wastewater, fire water and industrial water assets
Helpful to have on hand: the asset type and approximate size, depth, access arrangement, floor or liner type, and whether it can stay in service. If you do not know yet, that is fine - the inspection is how we find out.