Measure before you choose
Check the incoming water’s total dissolved solids (TDS). Share the reading, expected daily litres and required rinse finish when planning the system.
DI water. A cleaner rinse.
Deionization uses ion-exchange resin to remove dissolved ions from water. It is a compact way to prepare rinse water for glass, especially when incoming mineral levels and daily water demand are modest.
Source water
DI resin
TDS check
Clean-water storage
Matched wash pump
Illustrative water path; final plumbing and pressure requirements depend on the selected equipment.
Where DI fits.
- A smaller, mobile setup with limited space.
- Lower-TDS source water and intermittent jobs.
- A final polishing stage after reverse osmosis.
The trade-off
Resin is a consumable. Higher incoming TDS and larger water volumes exhaust it faster, so compare the cost per litre rather than only the purchase price.
With SF13 or a custom rig
SF13 / HoverWash 13 does not include DI or RO. Specify a separate treated-water supply, or integrate purification and storage into a custom NECSS van or trailer build. A heat box is a separate choice and does not purify water.
Design around the working day.
Monitor the outlet
Check treated-water TDS with a suitable meter and follow the filter manufacturer’s replacement threshold. Resin exhaustion may not be visible in the tank.
Keep clean water clean
Use appropriate tanks, hoses and routing. Keep detergent and untreated-water lines from contaminating the final rinse supply.
Validate on the actual glass
Low-TDS water helps limit mineral residue. It does not replace proper soil removal, adequate rinsing or contact work where deposits require it.
Technical background: Unger’s pure-water cleaning guide and water purification technology overview. Equipment selection follows the chosen manufacturer’s specifications.
Compare the other approach.
For higher water demand or harder source water, consider RO before the DI stage.
Build it into your washing system.
Tell us your source-water TDS, daily rinse volume and available vehicle space. We’ll help plan treatment, storage and delivery together.