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Approved porous fill materials for tank backfilling, including washed sand and 7mm minus.
Prohibited non-porous fill materials like builders sand, clay, and cement to avoid voiding warranty.
Adherence to occupational health and safety legislation and Australian Standards for installation safety.
Proper marking of water pipes and outlets with "RAINWATER" and adherence to local plumbing regulations.
Guidelines for tank maintenance, referencing confined spaces legislation and occupational safety.
Considerations for excavation and trenching legislation, shoring, battering, and depth specific regulations.
Compliance with state/territory legislation regarding lifting and moving of Graf water tanks.
Verifying ground suitability, groundwater levels, expected loads, and underground services before installation.
Excavation requirements, trench width, depth sizing, and foundation layer specifications for tank installation.
Procedures for inserting tanks, initial water filling, and backfilling with compacted porous material.
Requirements for plumbing pipe declines, overflow connections, and routing of lines within empty pipes.
Attaching the telescopic dome shaft to the tank, ensuring proper seal fit and alignment.
Instructions for installing dome shafts designed for pedestrian traffic, including backfill compaction.
Guidelines for installing trafficable dome shafts, including concrete layering for vehicle loads.
Connecting extension risers to the tank dome for increased coverage heights and proper seal installation.
Regular checks for leaks, cleanliness, stability, and periodic 5-year servicing of the entire system.
Details of the filter package components, flow difference, and mesh size specifications.
Diagrams and dimensions related to the Minimax filter and overflow siphon.
Guidance on connecting inflow pipes and the emergency overflow siphon to the tank.
Connecting filter body to PVC pipe with attention to pipe length and secure fitting.
Procedures for inserting the filter, using rubber ring adaptors and Spannfix collars for secure connection.
Steps for initial setup, including cleaning the filter sieve and ensuring correct flow direction.
Ongoing checks for filter cleanliness, debris, and system stability to ensure optimal water yield.
Information on obtaining expert advice and support for installing Graf Tanks & Filters.
Utilizing the tank as a detention system to capture and release rainwater to manage storm flow.
Using the tank for water savings by collecting and slowly releasing rainwater for property use.
Configuration for a dual 5,000-litre tank system for storm water detention or retention.
Volumetric measurement data for a 5000L Platin tank, detailing litre increase by water depth.
The Graf Platin® Underground Rainwater Tank is a robust and versatile solution for rainwater harvesting, designed for shallow excavation and suitable for various applications, including pedestrian and vehicle loading. This system is engineered for durability and ease of installation, offering a 12-year warranty.
The Graf Platin® system is an underground rainwater storage tank designed to collect, filter, and store rainwater for various uses. It is suitable for both detention and retention purposes, allowing property owners to manage stormwater runoff while also utilizing collected rainwater for non-potable applications such as flushing toilets, filling washing machines, and watering gardens. The system incorporates an integrated filter technology to ensure the quality of the collected water. Its shallow excavation design minimizes installation depth, making it a practical choice for many sites. The tank can be installed in green areas or under areas used by passenger cars, with specific installation guidelines for each scenario to ensure structural integrity and safety.
The Graf Platin® tanks are available in three main capacities: 1500 Litres, 3000 Litres, and 5000 Litres.
The system is designed for a minimal installation depth, with coverage heights ranging from 455mm to 755mm for standard and trafficable dome shafts. For areas used by passenger cars, the minimum coverage above the tank shoulder is 700 mm and maximum 1000mm, with a concrete support layer (load class B25 = 250 kg/m²) around the collar area of the telescopic dome shaft. The maximum load for areas used by passenger cars is 3.5 tonnes. The tank is groundwater stable, with permissible immersion depths specified for installation in groundwater.
The Graf Platin® Underground Rainwater Tank is certified to Quality standard ISO9001-2008 and AS/NZS 4766-2006, ensuring high quality and compliance with Australian and New Zealand standards.
General| Brand | Graf |
|---|---|
| Model | PLATIN |
| Category | Water Heater |
| Language | English |
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