Fountain Water Cleaner Refill -25 gallons (120 day treatment)

The Healthy Ponds Fountain Water Cleaner Refills ship in a 4-pack; each refill treats up to 25 gallons of water and is effective up to 30 days (120 day total treatment). Every 30 days replace the used packet with a new refill to see continued results. INSTRUCTIONS: 1. Place only one bacteria packet into the dispenser. 2. Screw the cap back on the dispenser. 3. Place the dispenser in the fountain. 4. Replace bacteria packet every 30 days. NOTE: This is an all-natural system. It may require 4-6 weeks to achieve water quality improvement. For best results, do not use this product within 30 days of chemical or algaecide applications. Recharge the dispenser every 30 days.