I tried to clean a white cotton sofa yesterday. The sofa had been in storage for a while and was very dirty with dust and it also had boxes and items stacked on top of it that rubbed in the dirt.
I used prochem upholstery prespray and set my truckmount pressure to 200 psi with a closed jet wand. As I cleaned, it looked wonderful, I did have to go over some of the spots a few times. As each area dried, it turned a dingy tan color and was uneven. I cleaned it again and it looked perfect...for a while. I switched to an internal jet wand and left the pressure around 200..cleaned new areas and got the same results. I even tried a side of a cushion without prespray and it had the same effect.
I know there were some areas that were so dirty, I did over wet the spot, but there were areas that were not over wet that just didn't look right as it dried. I was cleaning this in a garage of a new home...it was a clean area and no dust in the air.
I told the customer that there would be no charge..it looked way better than when I started...it just wasn't good enough.
Have any of you guys ran into this before? And what has worked or do you suggest I try next time I have this trouble?
Thanks
I used prochem upholstery prespray and set my truckmount pressure to 200 psi with a closed jet wand. As I cleaned, it looked wonderful, I did have to go over some of the spots a few times. As each area dried, it turned a dingy tan color and was uneven. I cleaned it again and it looked perfect...for a while. I switched to an internal jet wand and left the pressure around 200..cleaned new areas and got the same results. I even tried a side of a cushion without prespray and it had the same effect.
I know there were some areas that were so dirty, I did over wet the spot, but there were areas that were not over wet that just didn't look right as it dried. I was cleaning this in a garage of a new home...it was a clean area and no dust in the air.
I told the customer that there would be no charge..it looked way better than when I started...it just wasn't good enough.
Have any of you guys ran into this before? And what has worked or do you suggest I try next time I have this trouble?
Thanks