Reverse Osmosis

A Premium Reverse Osmosis System that is close to my own.

Vyair RO-100MP 4-Stage 100 Gallons Per Day (378.5 Litres) Reverse Osmosis Water Filter System with Pump and MB-115 DI Resin

🔹 Premium Quality – A High Standard of Care Is used To Manufacture and Build This Unit

🔹 The Full Set – Package Contains The 2 Filter Cartridges, 100 GDP Membrane, MB-115 DI Resin, 5 Meter Tubing, All Necessary Housings, Connections and Fittings and A Booster Pump

🔹 4 Stage Filtration – PP Sediment Filter, Granular Activated Carbon Block, 100GDP Membrane, Resin De-Ionisation

🔹 Low maintenance Cost – Value For Money Replacement Cartridges and Membranes

🔹 Warranty – This Product Come With A Warranty of 12 Months. This Does Not Apply To Failures Caused by Abuse, Misuse or Failure To Properly Comply With Installation Instructions

Retails for £169.99 You can buy it from Amazon here

A Budget Reverse Osmosis System.

Reverse Osmosis Aquarium Compact Water Filter System 3 Stage (50 GPD)

This is a simple Reverse Osmosis unit that will get you started, it has a sediment filter, carbon filter and membrane.

Retails for £39.99 You can buy it from Amazon here

Both the budget and the premium version do not come with float valves and auto shut offs so I will include that here.

Finest-Filters Reverse Osmosis RO Unit Automatic Auto Shut Off Kit Float Valve Conversion

  • The Finest Filters Automatic shut off kit can reduce the amount of water wasted by preventing overflowing of the collection chamber.
  • This auto shut off kit is ideal for controlling the flow of water coming from a reverse osmosis water filter or similar that is connected to a tank or water butt. The water flow will stop when the tank is full, and the control valve will operate and close off the RO waste water line.
  • This kit is supplied with complete installation instructions to allow for easy installation.
Retails for £17.49 You can buy it from Amazon here

You will also need a TDS pen to measure your total dissolved solids.


  • Economy model that is ideal for end-users. Highly efficient and accurate due to its advanced microprocessor technology.
  • Hold Function: saves measurements for convenient reading and recording and battery life is approx. 1000 hours of usage and power source is 2 x 1.5V button cell batteries (included) (LR44 or equivalent)
  • Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Display: large and easy-to-read LCD screen.
  • Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking ‘x10’ image. Fun, translucent blue housing that’s very strong and durable.
  • TDS-EZ meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Includes a TDS chart sticker on the back of the meter that explains TDS values.
Retails for £18.99  You can buy it from Amazon here

The TDS pen also needs to be calibrated to make sure its accurate, this is the solution I use, to calibrate simple place TDS pen in solution and turn the small screw in the back on the unit until it matches the tds of the stated solution.

HM Digital C-342 TDS / EC Calibration Solution (342 ppm)

Retails for £11.95 You can buy it from Amazon here

I also recommend you get yourself a food grade blue barrel to store your reverse osmosis water, I will list a few in different sizes.


Retails for £54.99 You can buy it from Amazon here

30 Litre Blue Barrel

Retails for £15.89 You can buy it from Amazon here