Graf One2Clean Sewage Treatment Plant 5-19PE

from £1,906.99

The Graf One2Clean system provides effective treatment of domestic wastewater for discharge into a nearby watercourse. Its simple, low-energy design contains no moving parts inside the tank, making the system reliable, efficient, and easy to maintain.

Available in sizes from 3,750 L to 13,000 L, the One2Clean offers flexible solutions for a range of domestic sites.

Key Features

  • No mechanical parts inside the tank = fewer breakdowns.

  • Requires a power source, plug and play no wiring required.

  • Quiet, energy-efficient operation with low power consumption. Ultra low power use - just 0.63 kWh per day.

  • Complies with UK Building Regs and EN12566-3 standards.

  • Gravel Backfill: Ditching traditional concrete for gravel offers versatile installation across various ground conditions, cuts costs, and boosts environmental sustainability, saving up to £60 per cubic metre.

  • Flush-to-Ground Lid: the Graf system’s lid is ingeniously designed to be flush with the ground, preserving your property’s aesthetic appeal and maintaining a clean, unobtrusive profile.

  • Robust hardwearing design.

  • Ideal for new builds, rural homes, and septic tank upgrades.

  • Option for Pedestrian Lid or Heavy Duty Lid – vehicle loading up to 3.5t with a maxi tank dome (DN100 connection), composite plastic telescopic lid.

Lid:
Size:

The Graf One2Clean system provides effective treatment of domestic wastewater for discharge into a nearby watercourse. Its simple, low-energy design contains no moving parts inside the tank, making the system reliable, efficient, and easy to maintain.

Available in sizes from 3,750 L to 13,000 L, the One2Clean offers flexible solutions for a range of domestic sites.

Key Features

  • No mechanical parts inside the tank = fewer breakdowns.

  • Requires a power source, plug and play no wiring required.

  • Quiet, energy-efficient operation with low power consumption. Ultra low power use - just 0.63 kWh per day.

  • Complies with UK Building Regs and EN12566-3 standards.

  • Gravel Backfill: Ditching traditional concrete for gravel offers versatile installation across various ground conditions, cuts costs, and boosts environmental sustainability, saving up to £60 per cubic metre.

  • Flush-to-Ground Lid: the Graf system’s lid is ingeniously designed to be flush with the ground, preserving your property’s aesthetic appeal and maintaining a clean, unobtrusive profile.

  • Robust hardwearing design.

  • Ideal for new builds, rural homes, and septic tank upgrades.

  • Option for Pedestrian Lid or Heavy Duty Lid – vehicle loading up to 3.5t with a maxi tank dome (DN100 connection), composite plastic telescopic lid.


Product Specifications

Size: 3750 litre, 5 person

Length (mm): 2280

Width (mm): 1755

Height (mm): 1880

Weight (kg): 150

15 Year Warranty

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Size: 4800 litre, 7 person

Length (mm): 2280

Width (mm): 1985

Height (mm): 2110

Weight (kg): 185

15 Year Warranty

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Size: 6500 litre, 9 person

Length (mm): 2390

Width (mm): 2190

Height (mm): 2390

Weight (kg): 220

15 Year Warranty

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Size: 8500 litre, 12 person

Length (mm): 3500

Width (mm): 2040

Height (mm): 2515

Weight (kg): 380

15 Year Warranty

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Size: 10000 litre, 15 person

Length (mm): 3520

Width (mm): 2240

Height (mm): 2575

Weight (kg): 440

15 Year Warranty

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Size: 2 x 6500 litre, 18 person

Length (mm): 5390

Width (mm): 2190

Height (mm): 2390

Weight (kg): 440

15 Year Warranty

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Size: 13000 litre, 19 person

Length (mm): 4000

Width (mm): 2420

Height (mm): 2755

Weight (kg): 510

15 Year Warranty

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Delivery & Returns

  • Free delivery for England, Wales, and most of mainland Scotland. Additional charges may apply for the Scottish Highlands, Scottish Islands, Northern Ireland, Isle of Man, Channel Islands, or other remote locations, confirmed before order confirmation or dispatch.

  • Most orders are fulfilled within 10 working days from payment. Larger or specialist items may take longer — please contact us if your order is time-critical.

  • Offloading is the customer’s responsibility. Suitable equipment should be available to safely remove goods from the delivery vehicle.

  • For full delivery details, see our Delivery Policy.

  • Returns & Refunds: Standard items can be returned within 14 days of receipt, subject to our Returns & Refunds Policy. Many products are bespoke or custom-made (modified dimensions, fittings, pumps, colours, etc.) and cannot be returned unless faulty.