Reverse Osmosis Membrane Cleaning Skid (C I P)

Standard Features

The cleaning skid is designed for manual operation through a local control box located on the skid. A chemical storage tank is mounted on its own stand and connected to the skid with either hard PVC piping or quick disconnect fittings and flexible hoses. This gives the unit the ability to be mounted in a permanent location or totally portable if desired. The piping is schedule 80 PVC that is hydrostatically tested at the factory.

  • Skid mounted unit
  • Chemical solution tank with cover
  • PVC piping
  • Stainless cleaning pump
  • 5 micron cartridge filter with stainless steel housing (PCS8) or polypropylene (PCS4)
  • Local flow meter
  • 220V/1Ph/60Hz or 460V/3Ph/60Hz

Available Options

  • 220V/1Ph/50Hz or 380-415V 3Ph 50Hz
  • chemical tank with
  • Flexible hoses for cleaning connection
  • mounted skids for smaller units


  • Membrane cleaning
  • Descaling

Membrane Cleaning Chemicals
Acid and alkaline cleaning chemicals are most commonly used for membrane cleaning. Acid cleaners are designed to remove inorganic and iron deposits. Acid cleaning should be performed at a pH of about 2. Alkaline cleaners are designed for removal of biological matter, organic foulants, and silica deposits. Alkaline cleaning is performed at a pH of about 12.

Membrane Cleaning Process
Reverse Osmosis membrane elements can experience a decline in performance due to the accumulation of deposits on the membrane surface. Mineral scale, colloidal particles, biological matter, and insoluble organic compounds are the usual causes of membrane fouling. When production of a Reverse Osmosis system drops by at least 10 percent, or the differential pressure increases by 15 percent (over normal operating conditions), membrane cleaning should be performed. The following is a summary of the design of PWC cleaning stations and cleaning chemicals. More details instructions are available in the Operating and Maintenance manual for the PakWater Care Services Cleaning Stations.

Model No. Number of pressure vessels to be
cleaned at a time
Pipe Material Pipe Size Tank Capacity Shipping Weight
PCS4-1 1 (4″) Schedule 80 PVC 1″ 50 300
PCS4-2 2 (4″) Schedule 80 PVC 1″ 100 350
PCS4-3 3 (4″) Schedule 80 PVC 1″ 150 375
PCS8-1 1 (8″) Schedule 80 PVC 1.5″ 150 500
PCS8-2 2 (8″) Schedule 80 PVC 1.5″ 200 600
PCS8-3 3 (8″) Schedule 80 PVC 2″ 300 700
PCS8-4 4 (8″) Schedule 80 PVC 2″ 360 800
PCS8-5 5 (8″) Schedule 80 PVC 2″ 500 900
PCS8-6 6 (8″) Schedule 80 PVC 3″ 625 980

Pakwater Care Services also offers on SITE Reverse Osmosis, Desalination Membranes Cleaning Services in Pakistan.

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