Planning a rainwater project? Start with the right questions.

A practical checklist to turn site information, drawings and project requirements into a clearer product enquiry.

HONGLIANG editorialProject planningUpdated 3 min read
In this article
Installation reference from supplied project materials.
Installation reference from supplied project materials.

A useful rainwater project enquiry starts with context. The more clearly you describe the site and the intended outcome, the easier it becomes to discuss a suitable module configuration and a coordinated supply scope.

This guide brings those inputs into one place, so your team can prepare a focused first conversation.

01 / DEFINE THE BRIEF

Start with the project objective

Tell your supplier what the project needs to achieve. Your enquiry should identify the intended function and the requirements already established by the project team.

Rainwater storage

Describe the intended use of collected water and any capacity already specified.

Stormwater attenuation

Include the project’s temporary storage and discharge-control requirements.

Infiltration

Share the relevant ground assessment and the proposed infiltration design.

If the function is still being assessed, say so. It is more useful to identify an open design question than to treat an assumption as an approved requirement.

Explore the three system functions

02 / UNDERSTAND THE SITE

Gather the site information

A drawing is a useful starting point, especially when it is accompanied by a short written brief. Include the available footprint, proposed depth, surface use and the location of existing connections.

Site information to include in your enquiry
InformationWhat to share
Project locationCountry, city and project setting
Available spaceLayout drawing with dimensions and site constraints
Surface useLandscaping, pedestrian areas or vehicle areas
Ground conditionsAvailable geotechnical and groundwater information
Water connectionsInlets, outlets, overflow and inspection access
Project timingDesign stage, procurement plan and installation schedule

Keep drawing revisions clear. If the site layout changes, make sure the updated information is used in the product discussion.

03 / REVIEW THE DETAILS

Ask for the right documents

Product selection should be connected to the requirements of the actual project. Ask for documentation that relates to the proposed model and make any project-specific acceptance criteria clear.

  • Module dimensions and the relevant product drawing
  • Model-specific capacity and material information
  • Supporting performance or test documentation requested by the project
  • Assembly and installation instructions
  • Packing, inspection and delivery documentation
A note on technical values

This article is a planning checklist. Confirm dimensions, capacity, loading and installation requirements against the selected product documentation and approved project design.

04 / COORDINATE THE COMPONENTS

Define the complete supply scope

Discuss the module array alongside the supporting components. Clear boundaries help everyone understand which items are being supplied and which are provided elsewhere in the project.

Concept illustration of an underground modular rainwater system
Concept illustration; final details follow the approved system design.

Your scope may include modules, liner or geotextile, filters, connecting components and inspection access. Record the agreed scope and the technical information still needed.

PRODUCT REFERENCEPP Rainwater Harvesting Module

05 / YOUR NEXT STEP

Prepare your enquiry checklist

Before starting the conversation, bring these details together:

  1. Project location, contact person and company
  2. Intended system function and required volume, if known
  3. Site drawings, available footprint and installation depth
  4. Surface use and project loading requirements
  5. Requested components, documents and delivery timing

You do not need every answer to begin. Highlight the details that are confirmed and the questions that still need coordination.

Discuss your project
Keep the product catalogue close.

Original HONGLIANG rainwater system brochure.