Tips For Cleaning With Pure Water - unGer HYDRO POWER ULTRA DIUH1 Mode D'emploi

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After cleaning I see stains or smudges on the window.
What could be causing this ?
The cleaning was not thorough enough:
Make sure to wash off all visible dirt and residues. Rinse thoroughly.
Cleaning detergent residues on the surface:
If the window was previously cleaned using traditional method, it may take up to
2-3 rounds of cleaning with pure water to achieve perfect results to remove all residues
of soap out of the glass.
Insufficient water flow:
An optimum level of between 120-150l per hour is ideal for regular glass cleaning.
Make sure that the entire glass surface has been rinsed thoroughly.
The water is not 100% pure:
Water is considered pure when its TDS measure is 0 ppm - use the TDS meter to check
this. The resin should be changed when the TDS measure rises up to 10ppm to ensure
spot-free finish.
Consider the overall quality of incoming water, e.g. well water may contain contami-
nants that make it unsuitable for window cleaning.
Wrong movement of the brush:
Always wash and rinse from top to bottom.
Dirt around the frames:
Over time, dirt may accumulate in and around the frames, especially when silicone
joints and rubber seals are not watertight. Water can loosen and transfer the dirt onto
glass, so wash and rinse thoroughly.
How do I clean wooden window frames?
Avoid glazed or oiled frames
Pure water dissolves the oils or tannin.
Varnished window frames:
Avoid using pure water as it may accelerate stripping of these coatings.
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HydroPower® Ultra
Tips for cleaning
with pure water
www.ungerglobal.com