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Installation and maintenance instructions for 

GRAF PLATIN Underground Rainwater Tank & Minimax Filter 

 

 

5,000L 
3,000L 
1,500L 

 
 
 

_______ 

 

5,000L 
3,000L 
1,500L 

 
 

_______ 

 
 
 
 
 

 

 
Platin Tank & 
Minimax Filter 
Packages 
 
Pedestrian  
or Vehicle 
______________ 
 
Platin Tank Only 
Packages 
 
Pedestrian  
or Vehicle 

 

 

 

   

 

   

 

The  Graf  Platin  is  suitable  for 
below ground installation.   

 

The  points  described  in  these 
instructions  must  be  observed 
under all circumstances.  

All warranty rights are invalidated 
in the event of non-observance.  

The tank must be checked for any 
damage  prior  to  insertion  into  the 
trench under all circumstances. 

Complies with AS/NZ 4766 

 

Platin Manufactuer:  

Certified  to  Quality  standard  ISO9001-
2008 and AS/NZS 4766-2006 

 

 

 

                             

 

 

Table of contents 

1.       INTRODUCTION 

1.1 

– 1.5  GENERAL NOTES ON SAFETY & MAINTENANCE 

2. 

INSTALLATION CONDITIONS 

3. 

TECHNICAL DATA  

4. 

TANK ASSEMBLY 

5. 

INSTALLATION AND ASSEMBLY 

5.1  Construction site 

5.20 

– 5.25 Trench, Ground water, Connecting several 

tanks 

7-8 

5.3  Insertion and filling 

5.4  Plumbing connections 

6. 

ASSEMBLING THE AND TELESCOPIC DOME SHAFT 

10 

6.1  Assembling the telescopic dome shaft 

10 

6.2  Telescopic dome shaft on which persons may 

walk 

10 

6.3  Telescopic dome shaft over which passenger 

cars may drive 

10 

7. 

ASSEMBLY OF THE EXTENSION RISER 

11 

7.1  Assembling the adapter 

11 

8. 

INSPECTION AND SERVICING 

11

 

 

9.      MINMAX FILTER PACKAGE INSTALLATION                12 -13 
 
10.    PICTORIAL INSTALLATION GUIDELINES                     14 - 15 
        10.1  Installer support service 
 
11.   STORMWATER DETENTION/RETENTION                      16 - 17 

 

Summary of Contents for PLATIN

Page 1: ...1 18 SHALLOW EXCAVATION ...

Page 2: ...2 18 ...

Page 3: ...rtified to Quality standard ISO9001 2008 and AS NZS 4766 2006 Table of contents 1 INTRODUCTION 3 1 1 1 5 GENERAL NOTES ON SAFETY MAINTENANCE 4 2 INSTALLATION CONDITIONS 5 3 TECHNICAL DATA 6 4 TANK ASSEMBLY 6 5 INSTALLATION AND ASSEMBLY 7 5 1 Construction site 7 5 20 5 25 Trench Ground water Connecting several tanks 7 8 5 3 Insertion and filling 9 5 4 Plumbing connections 9 6 ASSEMBLING THE AND TEL...

Page 4: ...dvertent connection with the drinking water supply In order to avoid the wrong connection between the drinking water and the rain water pipe work all conduits and tappings of rain water have to be marked clearly with RAINWATER in writing and be in accordance with local standards All non drinking tank water outlets should be clearly marked RAINWATER and we recommend they be installed with vandal pr...

Page 5: ...c dome shaft class B in areas used by passenger cars without groundwater and stratum water Coverage heights with telescopic dome shaft with cast iron lid Maximum load of the area used by passenger cars 3 5 tonne without groundwater or stratum water Coverage heights on installation in groundwater the hatched area specifies the permissible immersion depth for the tank not under areas used by passeng...

Page 6: ...ome Graf Platin Tank 1500 Litres 3000 Litres 5000 Litres Weight 82 kg 180 kg 250 kg L 2100 mm 2450 mm 2890 mm W 1250 mm 2100 mm 2300 mm H 700 mm 735 mm 950 mm Htot 1015 mm 1050 mm 1265 mm Minimum Hole Size L x W x H 2300 x 1450 x 1155mm 2650 x 2300 x 1190mm 3090 x 2500 x 1405mm Htot Htot Maximum Height Std Shaft Lid Maximum Height Trafficable Minimum Height 185 H L B 440 Maxi Hges 140 Hges 600 340...

Page 7: ...e installation excavation commences For setback distance from neighbouring boundary and any buildings please contact local council 5 2 Trench To ensure that sufficient space is available for working the base area of the trench must exceed the dimensions of the tank by 100 mm on each side the distance from solid constructions must be more than the depth of the trench away from the structure If the ...

Page 8: ...stallation adjacent to surfaces used by vehicles If the underground tanks are installed adjacent to surfaces which are used by heavy vehicles weighing over 3 5 tonne the minimum distance away from these surfaces is at least the depth of the trench 5 2 4 Connection of several tanks When two or more tanks are to be connected together this is done by joining the tanks together by using the GRAF Plati...

Page 9: ... must not be used under any circumstances Note The surrounding trench must be a minimum 100mm wider on all sides than then the tank 5 4 Plumbing connections All feed and overflow pipes must be plumbed with a decline of at least 1 in the direction of flow possible subsequent settling must be taken into consideration in this case If the tank overflow is connected to the public storm water this must ...

Page 10: ...ace of the site 6 2 Telescopic dome shaft on which persons may walk Important To prevent loads from being transferred onto the tank 7mm Minus is filled in layers around the telescope and is evenly compacted Damage to the tank dome and telescope must be avoided during this step The cover is then positioned and is sealed and tightened to prevent entry by children 6 3 Telescopic dome shaft over which...

Page 11: ...r 955 mm with standard lid and shaft respectively 1055 mm with vehicle lid and shaft 8 Inspection and servicing The entire system must be checked for leaks cleanliness and stability at least every three months The entire system should be serviced at intervals of approx 5 years In this case all parts of the system must be cleaned and their function checked Servicing should be carried out as follows...

Page 12: ...itable for roof areas up to 350 square metres The mesh width in the sieve insert is 0 35mm 9 2 Technical Specifications 9 3 Installation of inflow pipe and overflow siphon The emergency overflow siphon pictured at top on page on the left and on Page 13 is installed at 90 degrees to the inlet and outlets of the tank the Rodent Guard is inserted in the opening of the trap 9 4 Filter Installation Con...

Page 13: ...n the metal ring with an arrow on the inlet side When installing the filter cartridge pay attention that the joint seam of the sieve surface is positioned upward 9 7 Regular Maintenance To ensure maximum water yield the filter must be checked for dirt and debris immediately following the first rainfall occurrence after the tank installation It must also be checked after any major rainfall event an...

Page 14: ... base 2 Lift tank s off truck using suitable lifting equipment 3 Use digger to lift tank s into the hole 4 Back fill must be compactable porous with a maximum size of 7mm 5 Install geotextile cloth over tank and ditch and up to ground level if ground water could be above the shoulder of the tank 6 Connect plumbing 1 3 fill tank with water and then back fill ...

Page 15: ...eece Branch for assistance 7 Insert tank seal and plumbing connection fittings 8 Connect Minimax Filter Package see instructions pages 12 13 9 Lube up rubber seal with liquid soap provided before inserting Shaft Lid 10 Install Graf Telescopic Shaft Lid man hole to tank and complete landscaping 10 Pictorial Installation Guidelines of Graf Platin Tank cont 10 1 Installer Support Service ...

Page 16: ...tem 11 2 Detention Retention Tank Detain Retain With a national focus on water savings by collecting rainwater the installation of a detention retention coupled with a quality filtration system enables clean quality rainwater to be collected in the Graf Platin Tank Sized and set up correctly the tank will detain a specific amount of water required by the council before letting it go slowly back in...

Page 17: ...17 18 11 4 Two 5 000L Tanks Detention Retention System 11 5 Height of Detention Outlet Storm Water Detention Retention ...

Page 18: ...18 18 ...

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