Starbrite - Aqua Water Shock - 16 oz. - 97116 Instantly removes bad taste or smells from a boat or RV's potable water. Features: Size - 16 oz. Ideal for use after seasonal storage to "freshen" water tanks. Removes chlorine, sulphur, plastic or metal odor and taste. Provides long-lasting effect, even in extreme temperatures. 1 fluid ounce treats 10 gallons of water NOTE: To maintain water quality year-round, use Star brite Aqua Water Treatment & Freshener. Directions: Add 1 fluid ounce of Water Shock for every 10 gallons of potable water to be treated. Use as often as needed. Note: Water Shock is in concentrated form and must be diluted prior to drinking treated water. Do not drink or ingest at full strength; safe to drink only when diluted according to directions. After water tank and waterlines have been treated, use AQUA Water Treatment & Freshener to maintain water taste and smell on an ongoing basis. Note: If boat or RV has been in long-term or seasonal storage, or if water has str