Graf One2clean Bedienungsanleitung

Document No. Graf-0003 Rev. 1

ONECLEAN TANKS

INSTALLATION

MANUAL

. GENERAL NOTES

Graf UK Ltd



GENERAL NOTES

Safety

The relevant accident prevention regulations must be

observed during all work. Particularly when walking on

the tanks, a 2nd person is required to secure the tank.

The relevant regulations and standards must

additionally be taken into consideration during

installation, assembly, servicing, repair, etc.

The system or individual parts of the system must be

installed by qualiﬁed specialists.

During all work on the system or parts of the system,

the entire system must always be rendered inoperable

and secured to prevent unauthorised reactivation.

Except in the event of work carried out in the tank, the

cover of the tank must always be kept sealed, as this

otherwise constitutes a maximum risk of accident. Only

original GRAF covers or covers approved in writing by

GRAF must be used.

GRAF oers an extensive range of accessories, all of

which are designed to match each other and which can

be extended to form complete systems.

The use of other accessories may lead to impediments

to the system’s functional capability, therefore

invalidating liability for resulting damage.

. INSTALLATION CONDITIONS

Graf UK Ltd 

Coverage heights with telescopic dome shaft in green

areas.

Maximum coverage heights with extensions and

telescopic dome shaft.

Covering heights with cast telescopic dome shaft (with

class B cast cover) in areas with car trac (load up to

3.5 t).

Coverage heights with vehicle loading cover (suitable

cover to be provided by others) in areas used by trucks

with a max. weight of 12 t.

Coverage heights on installation in groundwater the

hatched area speciﬁes the permissible immersion

depth for the tanks.

The immersion depth is 350 mm.

2INSTALLATION CONDITIONS

1200

Mini telescopic

dome shaft

Maxi telescopic with cast iron lid

>800<1200

max 12 to

>800<1200

max.

350mm

. TANK INVERT LEVELS

Graf UK Ltd



TANK INVERT LEVELS

Population Equivalent 5 PE 7 PE 9 PE

Tank 3750 litres 4800 litres 6500 litres

Max. daily inflow 750 l/d 1050 l/d 1350 l/d

Weight with mini tank dome 146kg 181kg 220kg

Weight with maxi tank dome 150kg 185kg 220kg

L 2280mm 2280mm 2390mm

W 1755mm 1985 mm 2190mm

H-Inv - 1390mm 1575mm 1840mm

H-Inv + * 630 to 1460mm

H-Tot 2020 to 2790mm 2250 to 3020mm 2530 to 3300mm

650

290

Inlet Level

(varies with tank size)

H-Inv +

H-Inv -

H-Tot

650

610

Inlet Level

(varies with tank size)

H-Inv +

H-Inv -

H-Tot

With mini tank dome

With maxi tank dome

* Various inlet options available to suit installation. Please specify invert depth required when ordering.

. TANK INSTALLATION

Graf UK Ltd 

TANK INSTALLATION

1. Subsoil

2. Telescopic dome shaft

3. Compact foundation

4. Surrounding (round-grained gravel, maximum grain size 10 to 20mm)

5. Covering layer

6. Carat underground tank

7. Concrete layer for surfaces used by passenger cars

1 4 7

2 5

. TANK INSTALLATION

Graf UK Ltd



TANK INSTALLATION

Trench

To ensure that sucient space is available for working, the base area of the trench must exceed the dimensions of

the tank by 500mm on each side; the distance from solid constructions must be at least 1000mm.

The trench embankment must be designed so that slippage or collapse of the embankment wall is not to be

anticipated. The construction site must be horizontal and plane and must guarantee sucient loadbearing capacity.

The depth of the trench must be dimensioned so that the max. earth coverage (see point 2 installation conditions)

above the tank is not exceeded. To use the system throughout the entire year, it is necessary to install the tank and

those parts of the system which conduct water in the frost-free area. The frost-free depth is usually approx. 600mm

to 800mm; precise information in this regard can be obtained from the responsible authority.

A layer of compacted, round-grain gravel (grain size 10 to 20mm, thickness approx. 150 - 200mm) is applied as the

foundation.

Slope, embankment, etc.

On installation of the tank in the immediate vicinity

(< 5m) of a slope, earthen mound or slope, a statically

calculated supporting wall must be erected to absorb

the soil pressure. The wall must exceed the dimensions

of the tank by at least 500mm in all directions, and

must be located at least 1000mm away from the tank.

Groundwater and cohesive (water-

impermeable) soils (e.g. clay soil)

If it is anticipated that the tanks will be immersed

deeper into the groundwater than is shown in the

adjacent ﬁgure, sucient dissipation must be ensured.

(See table for max. immersion depth).

Dissipation of the drainage water (e.g. via an annular

drainage system) is recommended in the case of

cohesive, water-impermeable soils.

Installation adjacent to surfaces used by

vehicles

If the underground tanks are installed adjacent to

surfaces which are used by vehicles heavier than

passenger cars, the minimum distance away from

these surfaces is at least the depth of the trench.

Population Equivalent 5 PE 7 PE 9PE

Tank size 3750 4800 L 6500

Immersion depth 350mm 350mm 350mm

>800<1200

max.

350mm

. TANK INSTALLATION

Graf UK Ltd 

Insertion and lling

The tanks must be inserted, impact-free, into the

prepared trench using suitable equipment. The tank is

ﬁlled with 1/3 water before starting to backﬁll.

Afterwards the surrounding (roundgrain gravel,

max. grain size 10 to 20mm) is then ﬁlled in layers of

max. 30 cm steps and is compacted. The individual

layers should be manually tampered to ensure no

voids. Damage to the tank must be avoided during

compaction. Mechanical compaction machines must

not be used under any circumstances. The surrounding

must be at least 500mm wide.

Ventilation and bleeding

Poor venting and the lack of a Soil Vent Pipe is the

number one cause of smells from treatment plants. All

tanks must be ventilated and bled back through the

soil vent pipe (chimney eect). Air Admittance Valves

(Durgo Valves) must not be used instead of the SVP.

These valves are ﬁne for houses connected to mains

drainage but NOT for ones with a treatment plant.

4TANK INSTALLATION

Bleeding with a free outﬂow

Bleeding with percolation or an

obstructed outﬂow

1. 1/3

2. 3/3

500

. TANK INSTALLATION

Graf UK Ltd



TANK INSTALLATION

Assembling the telescopic dome sha

The telescopic dome shaft enables inﬁnite adaptation

of the tank to given site surfaces with earth coverage

of between 750mm and 950mm (Mini telescopic dome

shaft) or 750mm and 1050mm (Maxi telescopic dome

shaft).

For assembly purposes, the enclosed proﬁle seal

(material EPDM) is inserted into the tank dome’s

sealing groove and is coated generously with soft

soap (do not use mineral oil-based lubricants, as

these attack the seal). The telescope is then greased,

inserted and aligned with the surface of the site.

Telescopic dome sha on which persons may

walk

Important: To prevent loads from being transferred

onto the tank, round-grain gravel 1(max. grain size 10

to 20mm) is ﬁlled in in layers around the telescope 2

and is evenly compacted.

Damage to the tank dome 3and telescope must be

avoided during this step. The cover is then positioned

and is sealed to prevent entry by children. Tighten the

threaded connection on the cover so tightly that it

cannot be opened by a child!

Telescopic dome sha over which passenger

cars may drive

If the tank is installed under areas used by passenger

cars, the collar area of the telescope 1(colour

anthracite) must be supported with concrete 4(load

class B25 = 250 kg/m²). The layer of concrete to be

installed must be at least 300mm wide and approx.

200 mm high all around. The minimum coverage above

the shoulder of the tank is at least 800mm (max.

1050mm with telescope, coverage up to max. 1200mm

possible with intermediate section).

Attention: It is essential to use the cast telescopic

dome shaft (with class B cast cover).

. TANK INSTALLATION

Graf UK Ltd 

Assembling the extension

For larger coverage heights an extension is needed.

To insert the extension into the tank dome, soft soap

is needed. Into the highest groove of the extension

the proﬁle seal is inserted and greased generously.

Afterwards push the telescopic dome shaft into the

extension and adapt it to the planned area surface. The

extension must not be cut down.

1 Extension = max. earth-cover 1200mm

(in each case in connection with the Maxi telescopic

dome shaft)

1 Telescopic dome shaft (can be inclined by 5°)

2 Extension

3 Tank dome (can be rotated by 360°)

4TANK INSTALLATION

Cut line

Seal

. INTERNAL CABINET

Graf UK Ltd



Ground

First

WWT inlet pipe

The One2clean control panel supplies compressed air

through a 19mm and 13mm Hose to the underground tank.

Hoses should be housed inside 4" drainage pipe or similar.

Internal Sampling

Chamber

To drainage field or water course

Wastewater level

Tubular diffuser located in the base of tank

Below ground

Wastewater Tank.

625

Soil Stack

All treatable waste water to enter

treatment plant via soil stack

Clear water discharge pipe tubular

diffuser located in the base of tank

DN100

< 18m

13mm PVC Hose (black/red)

Fixed with Jubilee Clip

19mm PVC Hose (blue)

Fixed with Jubilee Clip

13mm PVC Hose (black/red)

Fixed with Jubilee Clip

19mm PVC Hose (blue)

Fixed with Jubilee Clip

One2clean Internal Control Panel

The controller requires its own,

permanent adequately fused (13

amp) 230V power supply. Fitted

with Isolator switch for

maintenance and repair

Low level air vent

DO NOT SCALE - IF IN DOUBT ASK

DRAWING No.

REV.

DESCRIPTION

INTERNAL CABINET

PROJECT

ONE2CLEAN

DRAWN :

CHECKED :

DATE :

SCALE :

07.10.20

NTS@A3

ISSUE

REV.

DESCRIPTION BY

FOR GUIDANCE DS 07.10.20

DATE

THIS DOCUMENT IS SUPPLIED IN STRICT CONFIDENCE AND MUST NOT

BE LENT, REPRODUCED OR DISCLOSED TO ANY THIRD PARTY WITHOUT

THE WRITTEN CONSENT OF SCP WATER MANAGEMENT LIMITED

NOTES:-

GRAF UK Limited

Graf UK Limited | Regen House | Beaumont Road | Banbury | OX16 1RH

T: 01608 661500 F: 01295 211333

E: [email protected] www.grafuk.co.uk

ONE2CLEAN_INTERNAL CABINET

Andere Handbücher für one2clean

Inhaltsverzeichnis

Andere Graf Boiler Handbücher

Graf

Graf PLATIN Bedienungsanleitung

Graf

Graf CARAT-S- Series Handbuch

Graf

Graf CARAT XL Bedienungsanleitung

Graf

Graf CARAT XL Bedienungsanleitung

Graf

Graf Carat XXL Handbuch

Graf

Graf Diamant Bedienungsanleitung

Graf

Graf PLATIN Bedienungsanleitung

Graf

Graf HERKULES Bedienungs- und Wartungshandbuch

Graf

Graf Carat series Bedienungsanleitung

Graf

Graf Carat RS Series Bedienungsanleitung

Graf

Graf CARAT XXL Series Handbuch

Graf

Graf PLATIN Bedienungsanleitung

Graf

Graf 320001 Bedienungs- und Wartungshandbuch

Graf

Graf PLATIN XL Bedienungsanleitung

Graf

Graf RainHarvest Systems Top-Tank 323002 Gebrauchsanweisung

Graf

Graf Diamant Bedienungsanleitung

Graf

Graf 330L Bedienungsanleitung

Graf

Graf 300 Gebrauchsanweisung

Graf

Graf Garantia Top-Tank Gebrauchsanweisung

Beliebte Boiler Handbücher anderer Marken

Kenmore

Kenmore 153.582400 Bedienungsanleitung

Applimo

Applimo Edel AIR Bedienungsanleitung

STIEBEL ELTRON

STIEBEL ELTRON Eltronom SHU 5 S Bedienungsanleitung

clage

clage E-Mini Series Bedienungsanleitung

Toyotomi

Toyotomi Oil Miser OM-180 Bedienungsanleitung

Bradford White

Bradford White EF Series Bedienungsanleitung

Eccotemp

Eccotemp 40-H Bedienungsanleitung

Dimplex

Dimplex ECSd125-580 Leitfaden

Dux

Dux 32FCR6N Bedienungsanleitung

Toyotomi

Toyotomi Oil Miser OM-148 (Type D) Fehlerbehebungshandbuch

Noritz

Noritz N-132M Gebrauchsanweisung

TESY

TESY GCV7/4S 10047 Technisches Datenblatt

A.O. Smith

A.O. Smith Gphe 50 Bedienungsanleitung

Koryo

Koryo KWHZF15Y Bedienungsanleitung

Pentair

Pentair PSC-14-4-02 Bedienungsanleitung

GE 40M06AAG Montageanleitung

Thermor

Thermor AEROMAX SPLIT 2 Bedienungsanleitung

American Hometec

American Hometec AHQ-B03X Bedienungsanleitung

Graf one2clean Bedienungsanleitung

Beliebte Boiler Handbücher anderer Marken