Jacob Lawrenzo
New member
- Messages
- 4
- Location
- Surrey
Good morning,
I own a small cleaning company in Surrey, we've cleaned ovens & carpets for 11 years, but we are now venturing into window cleaning.
Whilst we start & build up the window cleaning division I opted to buy a Streamline battery powered WFP trolley system. It came with a TDS meter. When I first tested the machine on my windows at home, it left water marks. I tested the water and it was showing between 5-6 ppm. I changed the resin and now it's reading zero ppm. However, it's still leaving pretty bad watermarks. What could be the reason if the water is "pure"? Can any additives be added to the water to help, or will these be neutralised when run through the resin?
Many thanks in advance.
I own a small cleaning company in Surrey, we've cleaned ovens & carpets for 11 years, but we are now venturing into window cleaning.
Whilst we start & build up the window cleaning division I opted to buy a Streamline battery powered WFP trolley system. It came with a TDS meter. When I first tested the machine on my windows at home, it left water marks. I tested the water and it was showing between 5-6 ppm. I changed the resin and now it's reading zero ppm. However, it's still leaving pretty bad watermarks. What could be the reason if the water is "pure"? Can any additives be added to the water to help, or will these be neutralised when run through the resin?
Many thanks in advance.