Only original GRAF covers or covers approved in writing by GRAF must be used. GRAF offers an extensive range of accessories, all of which are designed to match each other and which can be extended to form complete systems.
2890 mm 3600 mm 1250 mm 2100 mm 2300 mm 2250 mm 700 mm 735 mm 1000 mm 1250 mm Htot* 1015 mm 1050 mm 1315 mm 1565 mm * Htot = total height (without telescopic dome shaft) Graf UK Ltd...
The frost-free depth is usually approx. 600 mm - 800 mm; precise information in this regard can be obtained from the responsible authority. A layer of compacted, round-grain gravel (grain size 8/16, thickness approx. 100 - 150 mm) is applied as the foundation. Graf UK Ltd...
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Dissipation of the drainage water (e.g. via an annular drainage system) is recommended in the case of cohesive, water-impermeable soils. Tank 1500 litres 3000 litres 5000 litres 7500 litres Immersion depth 700 mm 735 mm 1000 mm 1250 mm Graf UK Ltd...
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(to be provided at construction site). The apertures must be drilled to the corresponding size using only the GRAF special crown bit. It must be ensured that the distance between the tanks is at least 500 mm. The pipes must pmiect at least 200 mm into the tanks.
Drainage possible, without bending, to the tank with a decline. solution Necessary bends must be formed using 30° moulded sections. Important: The empty pipe must be connected to an aperture above the max. water level. Graf UK Ltd...
D cover, provided by the customer (max. useful length 440 mm), and the spacer (max. useful length 300 mm) can be used. Please note: Can only be driven over with HGV, if a self- supporting, steel-reinforced concrete plate is installed. Graf UK Ltd...
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1 Extension = max. earth-cover 955 mm respectively 1055 mm (in connection with Mini respectively Maxi telescopic dome shaft) Telescopic dome shaft (can be inclined by 5°) Extension Profile seal Tank dome Platin Graf UK Ltd...
External Hose Connection Box for rainwater extraction (optional) Ground RWP inlet pipe To soakaway Power cable for the submersible pump installed within a Skimming Overflow 50/100mm diameter electrical Rainwater level service duct Below ground Rainwater Harvesting Tank Submersible pump Graf UK Ltd...
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Internal hose connection box, located on manhole cover of rainwater tank 25mm compression T-fitting 25mm compression x 3/4” female threaded fitting 25mm compression x 1” male threaded fitting 1m length of braided hose, 3/4” male x 3/4” female connections Graf UK Ltd...
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GARDEN SUBMERGE SET - INSTALLATION OF TECHNICAL PARTS 6.3 Installation of internal hose connection box Graf UK Ltd...
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GARDEN SUBMERGE SET - INSTALLATION OF TECHNICAL PARTS 6.3 Installation of internal hose connection box (continued) Graf UK Ltd...
• The filter is suited to roof surfaces of up to around 200 m Ø410 7.2 Filter preparation Before being installed in the tank, the enclosed chain suspension must be secured to the filter strainer using the three S-shaped hooks supplied and shortened to the assembly length required. Graf UK Ltd...
690 mm) and then attached to the shaft’s collar. The prepared filter is then guided through the tank dome from above, slid onto the supply pipe, which is protruding at least 100 mm, and fitted in the cross bar using the previously adjusted chain suspension Graf UK Ltd...
(more often in autumn due to more leaves and twigs) or according to requirements. The filter strainer basket must be lightly pressed into place taking care that the seal sits precisely after every cleaning. At the occasion of each inspection, the overflow siphon must be checked and flushed in necessary. Graf UK Ltd...
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Separate installation instructions are enclosed in the transportation packaging for all additional articles purchased from GRAF. The components must be checked for any damage prior to installation under all circumstances. Missing instructions can be downloaded on www.graf.info or can be requested from GRAF. Graf UK Ltd...
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W A T E R B U T T S & C O M P O S T E R S M U L T I P U R P O S E C O N T A I N E R S Graf UK Ltd Graf UK Ltd (Scotland) Regen House 220 Blairtummock Road...
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