Private Water Filtration Systems
Design & Installation
Complete Borehole & Spring Water Supply Systems
JN Environmental designs and installs complete private water supply systems for homes, farms, estates and commercial sites across England, Wales and southern Scotland.
From filtration and pumps through to storage, controls and UV treatment, our engineers design the complete system around your water quality, available flow, pressure and site demand.
Complete Private Water Filtration Systems
JN Environmental designs complete filtration systems around the actual conditions of the private water supply, including the raw water analysis, source yield, available flow and pressure, storage requirements and site demand.
Rather than treating individual filters as separate components, we design the treatment, pumping, storage, controls and UV equipment to work together as one complete system.
Water Analysis • Filtration Design • Borehole & Spring Treatment • Pumps & Pressure • Water Storage • Controls • UV Disinfection
Borehole Water Filtration
Treatment systems designed around borehole water quality, source yield, flow, pressure and site demand.
Spring Water Filtration
Filtration systems designed around spring water quality, seasonal flow, storage requirements and site demand.
Other Water Sources
Filtration and treatment for lakes, wells, surface-fed supplies, mixed sources and other non-mains water systems.
Bespoke Filtration Systems Designed Around Your Water
Every private water supply is different. The correct private water filtration system depends on the raw water quality, source yield, available flow and pressure, storage requirements and how much water the property or site actually needs.
JN Environmental designs borehole water filtration systems and spring water filtration systems around those conditions rather than relying on a standard off-the-shelf package. Filtration, pumping, storage, controls and UV disinfection are selected to work together as one complete system.
If you do not have a recent water analysis, we can arrange sampling and laboratory testing before the treatment system is designed.
Private Water Filtration Systems • Borehole Water Filtration • Spring Water Filtration • Water Analysis • pH Correction • Iron & Manganese Removal • Turbidity Reduction • Sediment Filtration • UV Disinfection • Pumps • Storage • Controls • Commissioning
Headquartered in Bury, Greater Manchester, with engineers operating throughout England and Wales and the southern Scotland.
Planning a new filtration system?
Speak to our Head Office team about your water analysis and site requirements.
Common Private Water Supply Problems
Private water supplies can contain naturally occurring minerals, sediment, organic matter and microbiological contamination. Below are some of the most common water quality problems we see in borehole, spring and other private water sources.
Iron (Fe)
Iron (Fe)
DWI limit: 200 µg/L
Iron is commonly found in groundwater and can cause orange/brown staining, metallic taste and discolouration. It can also foul pipework, filters and other water treatment equipment.
Typical treatment: Oxidation and filtration.
Manganese (Mn)
Manganese (Mn)
DWI limit: 50 µg/L
Manganese occurs naturally in groundwater and can cause black staining, dark deposits and discolouration. It can also build up inside pipework, tanks and treatment equipment.
Typical treatment: Oxidation, pH control and filtration.
Acidity (Low pH)
Acidity / Low pH
DWI range: 6.5–9.5 pH
Low pH means the water is acidic and may become corrosive to copper pipework, fittings and equipment. It can also increase the risk of metals dissolving into the water.
Typical treatment:
High-grade pH correction media.
Turbidity
Turbidity
DWI limit: 4 NTU
Turbidity is cloudiness caused by suspended sediment, minerals or fine particles within the water. High turbidity can also reduce the effectiveness of downstream UV disinfection.
Typical treatment:
Sediment or multimedia filtration.
Hardness (Ca / Mg)
Hardness (Ca / Mg)
No statutory maximum limit
Hardness is mainly caused by dissolved calcium and magnesium in the water. It can create limescale on taps, heating elements, pipework and other water-using equipment.
Typical treatment:
Ion-exchange water softening.
Arsenic (As)
Arsenic (As)
DWI limit:
10 µg/L
Arsenic is a naturally occurring element that can enter groundwater through certain rocks and mineral deposits. It may be present even when the water appears completely clear.
Typical treatment:
Specialist media or reverse osmosis.
Nitrates
(NO₃)
Nitrate (NO₃)
DWI limit: 50 mg/L
Nitrate can occur naturally but is often associated with agriculture & fertilisers It is especially relevant to boreholes, wells and shallow groundwater supplies.
Typical treatment:
Ion exchange or reverse osmosis.
Bacteria
Bacteria
DWI limit: Zero
Bacteria can enter private water supplies through surface water, drainage, livestock activity or poorly protected sources. Waterborne bacteria can cause severe illness.
Typical treatment:
Filtration & UV disinfection, chemical dosing.
Sediment
Sediment
DWI Limit:
4NTU
Sediment can include sand, silt, clay and other fine particles entering the water from the source. It can cause cloudiness, block filters and interfere with downstream treatment equipment.
Typical treatment:
Sediment or multimedia filtration.
Colour
Colour
DWI limit: 20 mg/L Pt-Co
Colour may be caused by iron, manganese or naturally occurring organic material in the source water. It can affect appearance, taste and the performance of UV disinfection contributing to bacteria failures.
Typical treatment:
Carbon, resin or specialist filtration.
Tannins
Tannins
No single standalone limit
Tannins are naturally occurring organic compounds released from vegetation, peat and decaying plant material. They can give spring or surface water a yellow or tea-coloured appearance.
Typical treatment:
Tannin resin or activated carbon.
Organic Matter
Organic Matter
No single standalone limit
Organic matter can enter water from soil, vegetation, peat and decaying natural material around the source. It can affect colour, taste, odour and the performance of treatment systems.
Typical treatment:
Carbon or specialist organic removal.
What We Design & Install
From water treatment and filtration through to pumps, pressure, storage and UV disinfection, JN Environmental designs complete private water systems around the individual source, water analysis and site requirements.
Water Treatment & Filtration
Treatment systems for iron, manganese, low pH, turbidity, colour, tannins, hardness and other private water supply issues, designed around the actual water analysis and site requirements.
Pumps & Pressure Systems
Borehole pumps, booster pumps, pressure vessels and variable-speed systems designed to provide the required flow, pressure and reliable water delivery throughout the property or site.
Water Storage & Controls
Break tanks, treated-water storage, float switches, level controls, solenoids and automated control systems designed to manage water levels, pumping and system operation reliably.
UV Sterilisation & Final Filtration
Sediment filtration and UV disinfection as the final treatment stage, helping protect water quality before the water enters the property, storage tank or wider distribution system.
Buying or Selling a Property with a Private Water Supply?
Private water supplies can raise important questions during a property purchase or sale. Water quality, treatment equipment, pumps, storage and the condition of the existing system should all be understood before completion.
JN Environmental can inspect existing private water supply systems, review water analysis results and identify any obvious treatment, pumping or maintenance issues that may need attention.
For buyers, this can help avoid unexpected costs after purchase. For sellers and agents, it can provide clearer information about the condition and operation of the private water supply.
System Inspection • Water Analysis Review • Treatment Advice • Pump & Filtration Assessment
Why Choose JN Environmental?
Private water supplies need experienced engineers who understand the complete system — not just individual filters. JN Environmental combines water treatment, pumping and field engineering expertise with practical nationwide support.
What Our Customers Say
★★★★★ 5 Star Rated on Google
Trusted by homeowners, estates, farms and commercial customers across the UK. Read our verified Google reviews to see what customers say about our private water supply installation, servicing and breakdown support.
★★★★★
"Living rurally finding dependable service can a challenge, but Jack and his team have been outstanding. They are incredibly prompt reliable, knowledgeable and efficient whenever I have questions or need assistance with my Private Water Supply.
Their annual servicing is always thorough and hassle free. I highly recommend them to anyone needing top tier service!"
- James L, Northumberland
★★★★★
"Jn Enviromental have been amazing and a pleasure to work with
always availble and responsive and always ready to help
honestly I couldn't recommend enough.
Thank you Jack & the team you have been more than 5 stars"
- Jerry H, Cumbria
★★★★★
"I found JN Environmental after being messed around by a different installer.
Right from the initial quote to completion Jack was always open and honest and gave advice and provided options. All costing was given and everything was itemised.
Jack and his team are not only thorough but have pride in their work. I would recommend JN Environmental to anyone who has private water."
- Mike W, Lancashire
★★★★★
"Fabulous and professional with a wealth of experience! We have tried numerous companies to date and JN environments were the only company that could resolve our problems with our water supply! A huge thanks and see you at the next service!"
- Trevor B, Northumberland
Private Water Supply Engineers Across England, Wales & Southern Scotland
JN Environmental is headquartered in Bury, Greater Manchester, with engineers covering private water supply projects throughout England, Wales and southern Scotland.
We support domestic, agricultural, estate and commercial private water supplies, from routine servicing and breakdowns through to complete treatment, pumping and storage installations.
Lancashire • Greater Manchester • Cumbria • Cheshire • Yorkshire • Derbyshire • Staffordshire • Shropshire • Northumberland • Wales • Southern Scotland
Not sure if we cover your area? Speak to our Head Office team and we’ll confirm availability.
Recent Private Water Supply Projects
From domestic borehole systems to larger commercial private water supplies, our engineers design, install, service and upgrade systems around real site conditions, water analysis and demand.
Borehole Water Filter System Installation
Customer: Private
Property Type: Multiple Houses
Description: A borehole-fed system supplying three residential properties. The treatment was designed to correct acidic pH and remove iron, manganese and bacteria, providing a reliable treated water supply across all three homes.
Spring Water Filter System Installation
Customer: Private
Property Type: House
Description: A spring-fed system designed to treat acidic pH and bacteria. A 3,000 litre storage tank and variable-speed booster pump provide reliable treated water, stable pressure and consistent flow throughout the property.
Commercial Borehole Water Filter System Installation
Customer: Plant Hire Operator
Property Type: Plant Hire Depot
Description: A commercial borehole-fed system designed to correct acidic pH and remove iron and turbidity. The upgraded treatment now provides a reliable supply of cleaner water for the vehicle wash station and site use.
Private Water Supply FAQs
Answers to some of the most common questions we’re asked about private water supply installation, servicing, treatment and repairs.
Can you service a private water supply system installed by another company?
Yes. JN Environmental services, repairs, upgrades and maintains existing private water supply systems regardless of who originally installed them.
Do you install complete borehole and spring water systems?
Yes. We design and install complete private water supply systems including filtration, pumps, controls, storage, UV treatment and associated equipment.
What areas do you cover?
Our Head Office is in Bury, Greater Manchester, with engineers covering England, Wales and southern Scotland, including the Scottish Borders and Dumfries & Galloway.
Can you help if we have no water or a system breakdown?
Yes. We provide breakdown support for borehole pumps, filtration systems, pressure equipment, controls and other private water supply equipment.
Do you carry out water testing?
Yes. We can arrange water sampling and laboratory analysis to investigate water quality, identify treatment requirements and verify system performance.
What water quality problems can you treat?
We design treatment for issues including iron, manganese, low pH, turbidity, colour, tannins, hardness, taste and odour, and microbiological contamination.
Do you work on commercial private water supplies?
Yes. We support domestic and commercial systems including farms, estates, holiday parks, hospitality sites, industrial premises and multi-property supplies.
How often should a private water supply system be serviced?
Most private water supply systems benefit from at least annual servicing, although the correct frequency depends on the equipment, water quality, usage and site requirements.
I’ve been let down by my current private water supply company. Can you take over?
Yes. You are not tied to the company that originally installed or serviced your system. JN Environmental can take over servicing and maintenance on your existing system.
Need Help With a Private Water Supply?
Speak to our Head Office team on 0161 523 6357