Walmart has the 32-Oz Clorox Pool&Spa Phosphate Remover for Swimming Pools on sale for $5.02. Shipping is free with Walmart+ ( free 90-day trial here [ walmart.com]) or free on $35+ orders.
Description:
- Clorox Pool&Spa Phosphate Remover helps eliminate phosphates and create crystal clear water. It can be used in all pool types including vinyl, concrete, gunite and fiberglass. Results occur in just 24 hours.
- Note that each 32-oz bottle will treat 10,000 gallons at one time. Unlike some pool chemicals, this pool phosphates reducer isn’t meant to be applied in small, regular doses. You only need to apply the appropriate amount of product once to get results.