I would think that would be a waste of money using a chemical to neutralize th SH. You can achieve the same thing by constant watering. You dilute the runoff chemical down to safe percentages and you don't have any problems.
Don't increase your chemical costs. We all look for ways to decrease our chemical costs and increase our profit.
Brian
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Brian Friel The Roof Cleaners llc Oxford PA 19363 610 842 2104