Water quality is of prime importance in any laboratory.
Additional expenses are incurred by the labor needed to run the still and the time and effort needed to clean the scale build-up between runs. Reverse osmosis is the phenomena which occurs when pressurized water is applied to a semipermeable membrane. It is important to protect the TFC membrane from chlorine and heavy particulate loading because this will greatly extend the life of the RO cartridge. This protection is easily accomplished by using a spiral wound micron filter and a carbon block filter before the TFC-RO cartridge. A RO cartridge which is exposed to a chlorine free, low solute and low particulate feed stream can deliver tens of thousands of liters of high quality RO water.