A question about Ospho

[DC932]

Ok, i feel dumb asking this because Barry was kind and patient enough to stay on the phone with me when I was wondering how to use Ospho, but I still have a question....Once I've applied the Ospho, how long do I keep it wet until I rinse off with water? In other words, how do I know it has finished doing its job and can be rinsed off?

 

[Barry]

You will see it when the scale is gone and really no big deal as if you overlook a spot, just retreat it.

 

[DC932]

Thanks again Barry!