Water Tank Submittal Checklist: What to Review Before Fabrication

Set the Submittal Basis

A product catalogue helps a buyer understand a tank range; it is not the same as a project-specific shop drawing or approved submittal. Start by identifying the governing project specification, tank application, destination jurisdiction, review parties and required submittal stages.

Tank standards and authority requirements depend on the tank construction, service and location. For example, the AWWA standards catalogue lists separate documents for welded carbon-steel tanks, factory-coated bolted carbon-steel tanks and fiberglass-reinforced plastic tanks. That is a reminder to identify the standard named by the project—not to assume one standard applies to every tank.

For finished drinking-water storage in Minnesota, the state health department’s storage-tank plan-review page (marked “Last Updated: 10/03/2022”) lists items such as tank capacity, site and tank drawings, coating identification, construction procedures and disinfection information. Treat it as a location-specific illustration—not current universal guidance—and confirm the applicable requirements with the responsible authority for your project.

Review Drawings and Connections

Review the general arrangement (GA) drawing against the coordinated building or site layout. Check that the tank dimensions, orientation, access space and connection positions agree with the latest project information.

• Plan and elevations: overall length, width, height, roof profile, panel layout and drawing units.
• Capacity basis: nominal capacity, required usable volume and the operating levels assumed in the design, where specified.
• Connection schedule: inlet, outlet, overflow, drain and instrument connections, with size, type, orientation and elevation clearly referenced.
• Access and ventilation: hatch, ladder, vent, overflow termination and maintenance access as required by the project design.
• Installation envelope: route for moving components into the room, assembly space and any nearby walls, beams or equipment.

Do not approve a nozzle schedule based only on nominal pipe sizes. Confirm the mating flange or connection detail, the required orientation and which party supplies adjoining pipework, valves and fittings. Mark assumptions for confirmation rather than letting them become silent manufacturing instructions.

Check Support and Structural Interfaces

Ask for the tank support arrangement and the project-specific load or reaction information needed by the responsible structural engineer. The submittal should make clear which loads, support points and anchoring details the supplier has designed and which supporting works are by others.

Confirm the foundation or supporting structure, anchor interface, finished levels and drainage arrangement against the approved project drawings. Wind, seismic, snow, temperature, roof access and other design cases vary by location and application; do not copy values from another tank or use a generic article as a structural design basis.

Confirm Materials and Water-Contact Requirements

Compare the proposed material schedule with the project specification and water service. Identify the tank panel or shell material, finish or coating, internal liner if applicable, seals, gaskets and other wetted components that are within the supplier's scope.

Where potable-water approval or certification is specified, request evidence for the actual product or material and confirm the certificate's scope, conditions and market applicability. A material grade alone does not establish that the complete tank assembly meets every drinking-water requirement.

Ask the supplier to identify deviations or substitutions clearly. If the water chemistry, temperature, cleaning chemicals or site environment may affect material selection, have the project designer and supplier resolve suitability before the submittal is approved.

Agree Inspection and Test Documents

Use the contract and project specification to define what quality records and inspections are required. The submittal register may call for some of the following, depending on tank type and scope:

• Material or product data and certificates where specified.
• Fabrication or assembly procedures relevant to the selected tank construction.
• Inspection and test plan, including hold or witness points if required.
• Coating or lining product information and inspection records, when applicable.
• Leak-tightness or commissioning test method, acceptance criteria and responsible witnesses.
• Non-conformance and corrective-action records if deviations arise.

Agree the method and acceptance criteria before testing. Do not assume that every tank uses the same test pressure, fill stages, inspection method or acceptance limit; these must come from the approved design, contract and applicable standards.

Confirm Installation and Handover Information

Before procurement is complete, establish which installation documents and services are included. Depending on the selected package, the project may need handling and storage guidance, assembly instructions, connection details, commissioning steps, cleaning or disinfection instructions, operation and maintenance information, and a final as-built record.

Do not treat these items as automatic inclusions. Put the requested documents, language, format, review timing and responsible party in the purchase scope. Agree who provides site assembly, supervision, testing, training and final acceptance.

MingXing's technical downloads page lists product catalogues for sectional water tanks and pump systems. Use a catalogue for preliminary product familiarisation; it does not replace project-specific drawings. See the sectional water tank range, then request and review the documents applicable to the actual project.

Close Comments Before Fabrication Release

Manage the submittal as a revision-controlled review, not as a single email attachment. Keep a register with the document number, revision, submission date, reviewer, comment status and next action.

Release fabrication only through the approval process defined by the contract and project. If a later revision changes a connection, support, material or dimension, circulate it to the affected reviewers and record the decision before proceeding.

For a project-specific review, send MingXing the tank application, project specification, coordinated layout and connection schedule through the contact page. Mark preliminary information as unconfirmed so it is not mistaken for an approved design input.

Frequently Asked Questions

Can a product catalogue replace a project shop drawing?

No. A catalogue is useful for reviewing a product range, but it usually does not confirm a specific project's dimensions, connections, support interfaces or approved scope. Review project-specific drawings before the applicable fabrication release point.

Does every water tank project need an AWWA standard?

No single standard should be assumed to govern every tank worldwide. Check the project specification and local authority requirements; use an AWWA standard when it is applicable and explicitly required by the project.

Must every submittal include a potable-water certificate?

Only where required by the project specification or applicable authority. When certification is required, verify that the evidence covers the actual water-contact product or material and the intended market and use.