Taylor DPD Powder Reagent, 10 g | R-0870-I Alkalinity Adjusters Initial Treatment of Fresh Fill:

Initial Treatment of Fresh Fill: Add 8oz per 200 gallons directly to spa water

Made of high-quality durable vinyl

Add SeaKlear 90-Day Algae Prevention & Remover for Pools according to label directions for 20

and this bottle pays for itself many times over

Taylor DPD Powder Reagent, 10 g | R-0870-I Alkalinity Adjusters Initial Treatment of Fresh Fill:Taylor FAS DPD Powder Reagent 10 Grams Taylor formulates its reagents to remain effective for at least one year, with only very few exceptions (molybdenum indicator in liquid form is one; after four months old it should be tested against a standard periodically). As a general precaution, replace all reagents more than one year old, or at the beginning of a new testing season. When added to water, will turn sample to pink if free chlorine is present