A Domestic Sewage Treatment Plant

Biocell Domestic QuickOne+

Rated 4.85 out of 5 based on 26 customer ratings
(26 customer reviews)

Highest effluent quality and lowest energy consumption of any model available on the market. Shallow dig tank, no concrete backfill required. Nationwide delivery. Instant quote. Trade prices. Odour free and whisper quiet operation.


Highest effluent quality on the market, lowest energy consumption of any system available, shallow dig tank, flat base for easy installation, 2-day nationwide delivery. No moving parts in the tank.

Call us and compare our EN12566-3 test and CE declaration independent test certificate with any other company and you will see we have the best effluent quality and lowest running costs on the market.

EN12566-3 and SR66 certified. Also, British Water approved. Suitable for up to 4 to 48 persons. Gravity and pumped outlet models available. Reinforced HDPE tank suitable for below ground installation in all soil conditions without a concrete backfill. The best effluent quality on the market. Running costs as low as €0.10 / £0.08 per day.

  • Instant Quote
  • Shallow dig tank for easy installation
  • No concrete backfill required
  • Single piece watertight tank – not bolted together in sections
  • Lowest running costs on the market
  • Highest effluent quality on the market
  • 30% less sludge produced when compared to other systems
  • Approved for installation in place of any other system
  • No additives or chemicals needed
  • No odour
  • Whisper quiet operation
  • Nationwide rapid delivery

Homeowner: Why buy a Biocell QuickOne+

  • Save money every year on running costs
  • Save money every year with industry leading desludging intervals
  • No odour
  • Whisper quiet operation
  • Total peace of mind – from one of the most reliable, tried and tested systems on the market
  • Nationwide customer support and service teams

Installer/Builder: Why buy a Biocell QuickOne+

  • Trade discounts
  • High-density tank reinforced with stainless steel – so no concrete ever required
  • Risers for deep installations
  • Shallow dig tank – can be installed with a mini digger
  • Single piece high-density tanks. Guaranteed to be watertight
  • Plug and play complete unit – no separate housings for air blowers
  • Flat base for simple installation – not curved or cone-shaped tanks that are difficult to install
  • 2-day nationwide delivery

Biocell quickone home sewage treatment plant

How does the Biocell QuickOne+ home sewage treatment plant work?

The Biocell QuickOne+ is a totally packaged plug and play home sewage treatment plant. The full treatment process happens within a single tank. The treatment process is quick, simple and trouble free. Unlike other systems, the tank does not need constant electricity to produce the amazing effluent quality it achieves.

Step 1 – Raw sewage from the house flows into the sewage treatment plant.

Step 2 – The small air blower activates and runs in an on/off cycle aerating the wastewater via the bubble diffusers. This serves to mix the wastewater and to totally aerate the wastewater.

Step 3 – Naturally occurring bacteria in the wastewater develop in the aerated wastewater. They feed on the organic material and nutrients in the sewage, totally treating and cleaning it of contaminants. The aeration process supplies the bacteria with abundant oxygen, allowing them to multiply and clean to industry leading standards.

Step 4 – The settlement phase occurs after the aeration and cleaning has happened. During the settlement phase, any remaining fine solids in the wastewater settle to the very bottom of the tank producing sludge. There is no electricity used during the settlement phase. The treated water at the top of the tank is totally cleaned and ready for discharge to the soakaway or stream/watercourse.

Simple, trouble free with no moving parts in the tank. A process powered totally by air and naturally occurring bacteria.

Additional information


4-48 person systems available

Electrical Consumption (per day)

Low energy consumption on market
6 persons models: €0.10 / £0.08
8 persons models: €0.12 / £0.10
12 persons models: €0.16 / £0.14
14 persons models: €0.18 / £0.15

Treatment Standard

98% treatment efficiency

Inlet Pipe Size

110mm / 4" PVC

Outlet Pipe Size

Gravity models: 110mm / 4" [OD]
Pumped models: 38mm / 1¼" [OD]

Manhole Extensions Available

Yes – to 1000mm depth

Manhole Size

Ø 680mm – low visual impact

Tank Material

HDPE with reinforcement – unbeatable strength

Electrical Supply

3 core 220v supply to plant


EN12566-3, SR66, DIBT, British Water approved equipment

CE marked

Tank and all components CE approved

Suitable For Below Ground Installation

Yes – without concrete backfill

26 reviews for Biocell Domestic QuickOne+

  1. Rated 5 out of 5

    Adam Freylit

    Needed a system fast. Delivered 1 day after order. Very impressed with tank when it arrived. DIY installer here. Installed now and working perfectly. Would barely know there was a system in the garden.

  2. Rated 5 out of 5

    Stanley – UK

    Got a 6 pop tank for my new house. Price was keen. Very happy with product on arrival. Sales guy knew his stuff. 5+

  3. Rated 5 out of 5

    Ed Moriarty

    Did a bit of research and went for the Quickone domestic. No complaints. Good service.

  4. Rated 4 out of 5

    Barry Quinn

    All good. Installed now. Digger guy said he was very happy to be installing it as the reinforcing makes his job very easy. However, -1 star as was supposed be delivered tuesday afternoon but didnt arrive until wednesday morning. to be fair they did say that they could not guarantee next day delivery due to my location. But I am a harsh critic!

  5. Rated 5 out of 5

    Ian Thompson

    Was worried about noise as my neighbour has a different brand of system installed and it is very noisy. They guys at biocell said it was quiet. I took the chance and I am 100% satisfied. Compared to the neighbours unit the difference is shocking!

  6. Rated 4 out of 5

    Patricia K

    It was my job was to review and choose a sewage system for our new self build for my husband. Happy with the system. No problems during installation or operation. Nothing to compare it to really though so 4 stars.

  7. Rated 5 out of 5

    Billy Morrison

    Have my own digger. Have installed approx 3 tanks over last 10 years. This was the best yet though – which is great as its for my daughters house. Lovely shallow dig tank. Serious strength in the tank. didnt have to be careful with the install. Have been keeping an eye on it for last few weeks and its A1.

  8. Rated 5 out of 5

    Martin Burke

    I used it to replace a leaky concrete tank that has been a nightmare. Went for the biocell as it had a lower electricity use than any other system. Retiring soon so every penny counts.

  9. Rated 5 out of 5

    Alpine Drainage

    We are a drain cleaning company that does the odd install. Sales guys were straight up with answers to all my Q’s. Installed the tank 4ft below the garden level without a problem. Im happy and my client is happy.

  10. Rated 5 out of 5

    Adrian Capel

    Building a passive house. The Biocell quickone has the lowest energy of ANY system I came across. Also has an amazing level of cleaning. I was very surprised at some systems on the market. Their electricity use is just HUGE. The biocell unit ticks all my boxes.

  11. Rated 5 out of 5

    A Kelly

    Live beside a lake. Building control imposed very strict treatment standards. Biocell has the good standard at a good price. Installed by my groundworker and he said it was a great tank. Im no expert but it looked like a serious piece of kit.

  12. Rated 5 out of 5

    Tony P

    Building 5 houses to sell. Got excellent advice from the biocell guys on my soakaway system also. All approved by the local council and installed a 25 pop system. Good value for money. Will use them for my next project. They installed a system for my local school – so thats how I heard about them.

  13. Rated 5 out of 5

    Sam Connolly

    Winter is coming. We have had serious issues with our old system for the last few years. Its becomeing a nightmare emptying it. Was out there on christmas day last year. Got a few quotes last year but we could not afford it. Was speaking to my cousin recently who built a new house and got a tank from biocell. I had given up on it at this point due to my budget, but said I would call them as my cousin insisted. Anyway. I wont write an essay – but they did a full assessment, then gave me a price, then did the work and actually stuck to the price [!!!!] and im looking forward to a winter where I am not out in the garden every week pumping out the tank. Dont write reviews but making an exception here.

  14. Rated 5 out of 5

    Moham Stapp

    Very good tank. I am very pleased with my choice.

    • James Clarke


  15. Rated 5 out of 5

    Tony Quill

    Very pleased when I saw the tank. Images of the quick one look good on website, but it is equally impressive in reality. My installer was also happy to see it as he says he is sick of some of the rubbish people ask him to install. 5+

  16. Rated 5 out of 5

    Robert G

    Ordered Christmas week. Installed over Christmas. Had loads of visitors so it got a very good test and all good!!

  17. Rated 5 out of 5

    Val Robinson

    I build 5 houses a year and I am in business 20 years. Most of my work requires an off mains drainage solution. These tanks are simply the best engineered tanks on the market. When you see this tank arrive you will be pleased you went for one and avoided some of the other rubbish on the market. I have seen it all. Green lid is very handy also – you can hardly see it in the garden. Good job biocell!

  18. Rated 5 out of 5

    Barry Eviston

    Had one of these installed as part of an upgrade. Very minimal visual impact with small green lid.

  19. Rated 5 out of 5

    Simon Bane

    When it arrived I knew I had made the right decision. The quality of the product was instantly visible. Barely noticeable in the garden after installation.

  20. Rated 5 out of 5

    Archie West

    Completed significant market research. A huge range of products out there. Many seem to make false claims. I found out that every plant has an independent test certificate showing power use and treatment standards so just compared these and went for the quickOne then. Easy choice in the end.

  21. Rated 5 out of 5

    A Fenton

    My installer was very pleased when he hears I had purchased a biocell plant. Watched the installation and it looked like a really high quality bit of equipment.

  22. Rated 5 out of 5

    paul whittington

    very nice unit. almost invisible after installation 🙂

  23. Rated 5 out of 5

    A. Shortt

    Good advice, good product. Recommended.

  24. Rated 5 out of 5

    P Ringwood

    A highly engineered product. Recommended.

  25. Rated 5 out of 5

    Paul Rinder

    Was confused about what plant to go for until I compared all the systems Independent test certs. The Biocell plant has way lower running costs and way higher treatment levels. I dont know what anyone would buy elsewhere.

  26. Rated 3 out of 5


    A little unsure about these reviews? As you read through them they seem to cover all angles, suspicious of authenticity, would appreciate a comment from supplier replying to some negative comments? And not the half complaint about location and late delivery,…there cannot have only been all good comments

    • James Clarke

      The honest answer is that this is probably the best systems on the market, hence all the good reviews. Its the only sewage treatment plant on the market with stainless steel reinforcement internally. And the independent test certificate from PIA Gmbh in Aachen [notified CE marking tact facility] shows the Biocell QuickOne has the best effluent quality ad lowest energy use of any available system. Please email us with your details and we will send on all info to demonstrate this. Thanks for your comments.

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