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Apollo NZ Global

RHELGAN · WATER TECHNICAL CENTRE

Control the water system from source condition through storage, treatment and distribution.

The Technical Centre is a specification framework for early design, procurement and technical review. Published planning classes are not final engineering values. The exact storage structure, treatment train, pump duty, potable-water evidence and destination requirements are fixed against the live project.

01SOURCE
02ANALYSIS
03RAW STORAGE
04TREATMENT
05CLEAN STORAGE
06PUMPING
07DISTRIBUTION
08OPERATIONS

Technical topics

Eight controls shape the final water system.

Each topic separates planning information from the evidence and calculations required before a system is released for procurement.

01

Demand, storage autonomy + peak use

Size storage from the actual operating brief rather than from population alone.

  • Separate average daily demand from peak-hour and critical-use demand.
  • Confirm whether the project needs one, two, three or more days of storage autonomy.
  • Allow for source reliability, refill rate, treatment operating hours and maintenance downtime.
  • Healthcare, education, WASH and emergency projects require application-specific demand review.
02

Source-water quality

Treatment selection starts with a representative water analysis and the intended finished-water use.

  • Rainwater, bore, surface, municipal, brackish and seawater sources are treated differently.
  • Review microbiology, turbidity, salinity, hardness, iron, manganese and other relevant chemistry.
  • Do not specify reverse osmosis by default where simpler treatment is sufficient.
  • Final treatment performance is confirmed against the exact source-water data and destination requirement.
03

Storage material + tank architecture

Match the storage system to water use, environment, transport and maintenance requirements.

  • GRP sectional storage is the primary modular planning pathway for suitable projects.
  • Stainless sectional storage can be considered where the project specification or hygiene requirement calls for it.
  • Flexible storage is treated as a separate rapid-deployment pathway for emergency and temporary applications.
  • Material selection remains subject to exact potable-water evidence, corrosion exposure and project engineering.
04

Structure, foundation + environmental loads

A sectional tank is a structure; site loads and support conditions matter.

  • Confirm tank geometry, water depth, support layout and foundation level before manufacture.
  • Wind, seismic, external soil, flood and groundwater loads are project-specific.
  • Buried installation is not assumed from generic catalogue statements.
  • Final foundation and structural calculations are supplied or reviewed against the selected project configuration.
05

Potable-water evidence

Drinking-water claims are controlled at material and finished-system level.

  • Verify the exact tank-panel material, seal, gasket, coating and fitting scope that contacts drinking water.
  • Check the approval scope, issue date, expiry date and manufacturing location of any certification.
  • A general material certificate does not automatically cover every completed tank configuration.
  • Certification statements are only used where the exact approval scope has been verified.
06

Pumping + hydraulic design

Pressure, flow and distribution are selected from the actual network rather than tank capacity.

  • Confirm static head, friction losses, peak flow and highest delivery point.
  • Use duty / standby arrangements where service continuity justifies redundancy.
  • Bore, transfer, booster and distribution pumps are treated as different duties.
  • Solar pumping is evaluated from source yield, daily volume, head, solar resource and storage strategy.
07

Treatment train selection

Build the process around the contaminants that actually need to be controlled.

  • Potential stages include screening, sediment filtration, multimedia filtration, carbon, oxidation, UF, NF, RO, UV and dosing.
  • Pretreatment and cleaning requirements matter as much as the headline membrane technology.
  • Finished-water storage and disinfection strategy are coordinated with treatment output.
  • Final process flow and consumables are confirmed in the project technical schedule.
08

Operations, spares + monitoring

Remote projects need a maintainable system, not just successful initial commissioning.

  • Define filter, membrane, seal, valve and pump spares before shipment.
  • Confirm operator skill level, local consumables and routine maintenance intervals.
  • Use level, pressure, low-water, pump-fault and treatment alarms where appropriate.
  • Remote monitoring is optional and depends on connectivity, controls and the operating brief.

Modular storage classes

Useful planning bands, not fixed catalogue tanks.

Tank geometry is configured around usable volume, available footprint, water depth, site loads, access and material selection.

MWS-20

Compact Modular Storage

Up to approximately 20 m³

Small facilities, housing clusters and local storage

MWS-50

Facility Modular Storage

Approximately 20-50 m³

Schools, clinics, housing and small communities

MWS-100

Community Modular Storage

Approximately 50-100 m³

Community and institutional water systems

MWS-200

Large Community Storage

Approximately 100-200 m³

Larger community and development projects

MWS-500+

Infrastructure Modular Storage

Approximately 200-500+ m³

Large developments and infrastructure programmes

ENGINEERED

Engineered Water Storage

Project-specific

Major storage requirements outside standard planning classes

Evidence gates

Six checks before stronger technical claims are released.

The objective is to keep source technical documents, project engineering and stated performance aligned.

01

Potable-water contact

Exact material, gasket, liner, coating and fitting evidence must match the supplied system.

02

Structural design

Tank geometry, panel schedule, bracing, foundation and environmental loads are fixed for the project.

03

Treatment performance

Source-water analysis, process design, recovery, reject stream and finished-water target are documented.

04

Pump duty

Flow, head, motor, controls and redundancy are selected from the real hydraulic duty.

05

Operations

Spares, consumables, manuals, training and maintenance responsibilities are defined before handover.

06

Destination compliance

Local public-health, electrical, civil, environmental and statutory requirements remain visible project interfaces.

Project delivery resources

Carry the technical brief through evidence, commissioning and operation.

The water-system specification is stronger when project records, site readiness, testing, operator handover and long-term maintenance are defined alongside the equipment.

01

Selection Guide

Route the project by application, water source, storage scale and operating conditions.

02

Specification Template

Use one controlled RFQ schedule for source, storage, treatment, pumps, evidence and commercial scope.

03

Evidence & Documentation

Match potable-water, structural, treatment and pump claims to the documents that support them.

05

Operations & Maintenance

Plan maintenance, water-quality responsibilities, monitoring, spares and local operating ownership.

07

Demand & Storage Planner

Test project-entered demand, autonomy and reserve assumptions without imposing a default water allowance.

08

Responsibility Matrix

Make supply, local works, commissioning, approvals and operating interfaces visible before procurement.

Evidence control

Reference technical literature is useful for identifying construction families and planning ranges. Final project claims are controlled by the released drawings, material certificates, potable-water evidence, structural calculations, pump curves, treatment data, warranty and quotation for the exact configured system.

RHELGAN · WATER TECHNICAL REVIEW

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