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Product description

The Micro 4POP Gravity Sewage Treatment Plant is designed for lodges, caravans, workshops and domestic dwellings up to four people.

Package Sewage Treatment Plant’s (or PSTP’s) are often a suitable option where groundwater in the surrounding environment is vulnerable, drainage field percolation values are restrictive, or direct discharge to watercourse or surface water sewer is the preferred discharge method.

In addition to the anaerobic digestion taking place in the primary settlement tank (as septic tanks) the Micro unit allows the clarified water to pass into a second ‘aeration’ chamber where it is treated to remove the dissolved constituents. Here aerobic bacteria, supported by diffused air and mobile media, ensure full treatment is achieved before the treated effluent (and ‘sloughed off’ bacteria) flow to a final settlement chamber prior to discharge.

Key features

The Microbe is designed to BSEN12566:3 to comply with latest environmental and Building Regulations requirements*

Minimum effluent quality of 20:30:20 (BOD:SS:NH4) ensures discharges are within national consent standards

Compact design for ease of handling, access and installation enables suitability for all site conditions including bedrock or high water table

Low energy compressor ensures minimal running, maintenance and servicing costs

Internal recirculation (from final to primary chamber) continues treatment process to provide higher effluent quality whilst balancing flow over 24 hour period or periods of intermittent use

Unique ‘keying-in’ lip to assist anchoring into granular or concrete surround

Optional extras include patented Polylok filter to further reduce suspended solids and extend life of drainage field; extensions for deep installations; pumped outlets for sites with adverse levels; and many more

Downloads

Sizing and regulation

PSTP’s should be sized using the latest version of British Water Flows & Loads which provides detailed information on sewage production figures and sizing calculations – please ask us for help sizing sewage treatment plants

Regulatory authorities for the control of pollution in the UK normally require treatment plants conforming to BSEN12566:3 to be demonstrated as capable of producing a minimum effluent discharge quality of 20:30:20 (Biochemical Oxygen Demand:Suspended Solids:Ammoniacal Nitrogen in mg/ltr), although in certain areas more stringent site-specific qualities may be required

No surface water should enter the system as this can reduce the system’s capacity and cause solids to be flushed out which may prematurely block drainage field or cause pollution

As with septic tanks sludge should be removed annually or in line with manufacturers instructions

Product Description

The Micro 4POP Gravity Sewage Treatment Plant is designed for lodges, caravans, workshops and domestic dwellings up to four people.

Package Sewage Treatment Plant’s (or PSTP’s) are often a suitable option where groundwater in the surrounding environment is vulnerable, drainage field percolation values are restrictive, or direct discharge to watercourse or surface water sewer is the preferred discharge method.

In addition to the anaerobic digestion taking place in the primary settlement tank (as septic tanks) the Micro unit allows the clarified water to pass into a second ‘aeration’ chamber where it is treated to remove the dissolved constituents. Here aerobic bacteria, supported by diffused air and mobile media, ensure full treatment is achieved before the treated effluent (and ‘sloughed off’ bacteria) flow to a final settlement chamber prior to discharge.

We Are Rated Excellent on TrustPilot
Micro 4POP Gravity Sewage Treatment Plant
Micro 4POP Gravity Sewage Treatment Plant
Micro 4POP Gravity Sewage Treatment Plant
Micro 4POP Gravity Sewage Treatment Plant

Micro 4POP Gravity Sewage Treatment Plant

Micro 4POP Gravity Sewage Treatment Plant
Micro 4POP Gravity Sewage Treatment Plant
Micro 4POP Gravity Sewage Treatment Plant
Micro 4POP Gravity Sewage Treatment Plant

Product description

The Micro 4POP Gravity Sewage Treatment Plant is designed for lodges, caravans, workshops and domestic dwellings up to four people.

Package Sewage Treatment Plant’s (or PSTP’s) are often a suitable option where groundwater in the surrounding environment is vulnerable, drainage field percolation values are restrictive, or direct discharge to watercourse or surface water sewer is the preferred discharge method.

In addition to the anaerobic digestion taking place in the primary settlement tank (as septic tanks) the Micro unit allows the clarified water to pass into a second ‘aeration’ chamber where it is treated to remove the dissolved constituents. Here aerobic bacteria, supported by diffused air and mobile media, ensure full treatment is achieved before the treated effluent (and ‘sloughed off’ bacteria) flow to a final settlement chamber prior to discharge.

Key features

The Microbe is designed to BSEN12566:3 to comply with latest environmental and Building Regulations requirements*

Minimum effluent quality of 20:30:20 (BOD:SS:NH4) ensures discharges are within national consent standards

Compact design for ease of handling, access and installation enables suitability for all site conditions including bedrock or high water table

Low energy compressor ensures minimal running, maintenance and servicing costs

Internal recirculation (from final to primary chamber) continues treatment process to provide higher effluent quality whilst balancing flow over 24 hour period or periods of intermittent use

Unique ‘keying-in’ lip to assist anchoring into granular or concrete surround

Optional extras include patented Polylok filter to further reduce suspended solids and extend life of drainage field; extensions for deep installations; pumped outlets for sites with adverse levels; and many more

Downloads

Sizing and regulation

PSTP’s should be sized using the latest version of British Water Flows & Loads which provides detailed information on sewage production figures and sizing calculations – please ask us for help sizing sewage treatment plants

Regulatory authorities for the control of pollution in the UK normally require treatment plants conforming to BSEN12566:3 to be demonstrated as capable of producing a minimum effluent discharge quality of 20:30:20 (Biochemical Oxygen Demand:Suspended Solids:Ammoniacal Nitrogen in mg/ltr), although in certain areas more stringent site-specific qualities may be required

No surface water should enter the system as this can reduce the system’s capacity and cause solids to be flushed out which may prematurely block drainage field or cause pollution

As with septic tanks sludge should be removed annually or in line with manufacturers instructions

Micro 4POP Gravity Sewage Treatment Plant

We Are Rated Excellent on TrustPilot

Micro 4POP Gravity Sewage Treatment Plant

£2,430 £2,025 + vat

Not in stock Please contact us for lead time

Payment methods

Payment methods we accept

This product is ONLY available to trade customers.

For more information on the full Poolstar pool, spa and wellness range or to speak to us about becoming a stockist please call 01284 658770 or email our sales team.

We are proud to be the official UK & Ireland Poolstar distribution partner.

Download the Poolstar 2025-2026 Catalogue - pdf (73Mb)

Sales and technical help

Our sales team is more than happy to advise with product selection, trade enquiries and provide technical advice.

While our servicing team is on hand to help with servicing and after sales.

01284 658770

Mon to Fri 9am to 5pm /out-of-hours voicemail

Product code: 104522 Category:

Product description

The Micro 4POP Gravity Sewage Treatment Plant is designed for lodges, caravans, workshops and domestic dwellings up to four people.

Package Sewage Treatment Plant’s (or PSTP’s) are often a suitable option where groundwater in the surrounding environment is vulnerable, drainage field percolation values are restrictive, or direct discharge to watercourse or surface water sewer is the preferred discharge method.

In addition to the anaerobic digestion taking place in the primary settlement tank (as septic tanks) the Micro unit allows the clarified water to pass into a second ‘aeration’ chamber where it is treated to remove the dissolved constituents. Here aerobic bacteria, supported by diffused air and mobile media, ensure full treatment is achieved before the treated effluent (and ‘sloughed off’ bacteria) flow to a final settlement chamber prior to discharge.

Key features

The Microbe is designed to BSEN12566:3 to comply with latest environmental and Building Regulations requirements*

Minimum effluent quality of 20:30:20 (BOD:SS:NH4) ensures discharges are within national consent standards

Compact design for ease of handling, access and installation enables suitability for all site conditions including bedrock or high water table

Low energy compressor ensures minimal running, maintenance and servicing costs

Internal recirculation (from final to primary chamber) continues treatment process to provide higher effluent quality whilst balancing flow over 24 hour period or periods of intermittent use

Unique ‘keying-in’ lip to assist anchoring into granular or concrete surround

Optional extras include patented Polylok filter to further reduce suspended solids and extend life of drainage field; extensions for deep installations; pumped outlets for sites with adverse levels; and many more

Downloads

Sizing and regulation

PSTP’s should be sized using the latest version of British Water Flows & Loads which provides detailed information on sewage production figures and sizing calculations – please ask us for help sizing sewage treatment plants

Regulatory authorities for the control of pollution in the UK normally require treatment plants conforming to BSEN12566:3 to be demonstrated as capable of producing a minimum effluent discharge quality of 20:30:20 (Biochemical Oxygen Demand:Suspended Solids:Ammoniacal Nitrogen in mg/ltr), although in certain areas more stringent site-specific qualities may be required

No surface water should enter the system as this can reduce the system’s capacity and cause solids to be flushed out which may prematurely block drainage field or cause pollution

As with septic tanks sludge should be removed annually or in line with manufacturers instructions

Over 1,100 reasons why customers choose us

We have over 1,000 five star reviews on TrustPilot, below is some of our most recent customer feedback.

You can trust us when we say we care about the service we provide both before and after your purchase, there are hundreds more five star reviews from happy customers on our Trustpilot page.
We have over 1,000 reviews on Trustpilot - read our customer reviews

Read our TrustPilot reviews

★ ★ ★ ★ ★

First Class Service

Celia Howat (Verified purchase)

My experience with Automated Enviromental Systems has been over a couple of years. The quality of service and products purchased excellent. Whether I seek advice on heat pumps, water pumps, salt, alkaline issues, general pool health this company delivers. I am not technical minded and I have purchased several products from this company after they have discussed what I need... one pool heater to be returned without issue. I cannot thank Simon and various team members on the service, in particular follow up calls. This company comes highly recommended.

★ ★ ★ ★ ★

Complete satisfaction…

Karen Redfern (verified purchase)

Simon understood our requirements- designed the solution - completed the order swiftly- engineers on site within the week- job completed without any issue- what appeared difficult they resolved efficiently and could not have been more helpful in completing to our full satisfaction.

★ ★ ★ ★ ★

Excellent company to deal with

Gail Roberts (organic review)

From beginning to end AES made this easy and kept me informed through out the process. The team that came to clean the drainage chamber did a brilliant job considering the scale of the work required. Excellent company to deal with, great communication and reasonably priced. This will now be my go to company for any drainage requirements I may have.

★ ★ ★ ★ ★

Good, old fashioned customer service

Terence (verified purchase)

Good, old-fashioned customer service. You get to speak to a human who is knowledgeable, listens, understands and advises expertly. The kit I bought was exactly what I needed, and recommended by AES.

★ ★ ★ ★ ★

Responsive, professional, knowledgeable and helpful

Louise Woodward (verified purchase)

Every time we ask for help these guys are just brilliant. This time I sent in a photo of a broken part as I had no idea what it was called. Incredibly helpful. Thank you!