The basic procedure is generally to use a container whose volume is proportional to the osmosis unit and filled with osmosis water with the addition of an acid in order to obtain a low PH. This dilution is passed through the duck osmosis unit for a time to be defined (suction + permeate + concentrate towards the container) then the osmosis unit is reconnected to the origin as a water supply while rejecting the permeate and the concentrate at the sewer in order to wash the solution present on the membranes. The container is then filled again with reverse osmosis water for the same volume but with a base (soda) the same operation is repeated then the rinsing to the drain before reconnecting the raw water supply as well as the permeate to the process . It is then possible to see if the recovery is of quality in terms of volume produced, correct pressure on the membrane and desired conductivity reached. This procedure is basic for a physico-chemical obstruction, if the problem is bacteriological then the procedure consists of the use of a biocide.
I invite you to refer to the manufacturer's recommendations: the cleaning procedures may differ depending on the membranes and the quality of the water treated.
