it is a well known fact that although washing up liquid does clean dishes and windows very well it is designed in a particular way.
The easiest way and the best results for cleaning plates mugs etc is to rinse under tap running warm water wiping either with the fingers or a clean cloth.
When using a washing up liquid it is designed to leave a "film" of soap on the dishes ( or windows) this is what gives the lovely shine and that attractive rainbow reflection.
What people don't realise is that the film that is left is soap and we all know that soap is effective in washing away dirt because the dirt sticks to the soap.
This is the clever bit , this is the bit that ensures future sales of washing up liquid, after eating from a plate the food " sticks" to the soap residue and seems difficult to wash off so what do we do??
Yes we use more washing up liquid to help remove the food stuck to the plate which dries again and food/dirt then sticks even more so you use more washing up liquid and then you .............
This is why wfp and pure water leaves the window cleaner for longer, there is no soap for the dirt to stick too.
Think i am wrong?
Ask yourself this, do you rinse and rinse rinse the soap/shampoo off of your car or van after washing it ? or do you just leave the soap to dry?
? When washing your face do you leave the soap on your skin or do you wash it off?
Soap and particularly washing up liquid sticks to the surface it is applied too and this is how GG3 and GG4 differ they are designed to remove the dirt but not to leave a sticky residue " shining " on the glass.
Gordon
ps wish i had designed washing up liquid. The more you use the more you use.