The Spotless Water Solution - DI Resin Vessels

If you despise water spotting during the summer months or just in general, a resin vessel should be without a doubt the next thing on the to buy list. These water purifying devices sit between your tap source and hose / pressure washer. Resin vessels are Ideal for household users who frequently wash multiple items, Vessels provide exceptional filtration to prevent water spotting and streaking, whether air-dried, towel dried, or using a Air Dryer. We suggest rotating the cylinder monthly to ensure optimal resin mixing for superior outcomes. It is versatile for portable use or can be mounted using wall or steady bracket options.

Regarding filter size and lifespan:

  • The filter's resin capacity determines how many rinses it can handle before needing replenishment.
  • Resin longevity decreases in harder water conditions because it works harder to de-ionize the water.
  • All filters are effective, but water hardness, usage frequency, and water volume impact resin lifespan.
  • Larger cylinders require less frequent resin replenishment.

Water hardness guidelines:

  • Soft water: Less than 75 ppm total hardness.
  • Moderately hard water: 75 to 150 ppm total hardness.
  • Hard water: 150 to 300 ppm total hardness.
  • Very hard water: 300 ppm or higher total hardness.

Testing water hardness is as easy as using these devices seen below 

TDS-3 Meter (Water Quality Test Meter)


Resin Vessels

Available at My Car Cleaning are the Prowater Resin vessels. Featuring a capacity of 11.0 litres, and used in conjunction with DI resin can produce top quality water which is suitable for any pure water application.  Perfect for car valeting, window cleaning, aquatics, gardening and hydroponics as well as fish keeping. 


  • 8" diameter, 17" high (excluding base and head)
  • 11.0 litre capacity
  • Includes stand (base)
  • Click & Clunk Fittings included
  • Complete vessel, all parts included and assembled, such as the riser pipe, resin head, and internal parts
  • Complies with all requirements of P.E.D. 97/23/EC directive
  • Suitable for drinking water following KTW recommendations

Operating Specifications:

  • Maximum pressure: 10.5 bar (150 psi)
  • Maximum temperature: 49°C (120°F)
  • Minimum temperature 1°C (34°F)
  • Maximum vacuum: 127 mm Hg (5" Hg)
  • Vessel approved for water filtration use only
  • Vessel must not be exposed to temperature below -29°C (-20°F)

This FRP tank is Tested and Certified by NSF International against NSF/ANSI Standard 44 for materials and structural integrity requirements. 

Get Yours Now - 

Prowater 11 Litre Resin Water Filter Vessel Blue

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