Muddy Pond After Storm: Coagulant and Diversion

18x21 ft liner pond with skimmer/biofalls. Storm washed dirt in. Falls off 2 days, cleaned filter, restarted—still brown. Fish invisible.

Quick Clear

Use coagulant (e.g., Accu-Clear): polymer binds suspended particles → sink or filter catch. Aerate well (uses oxygen). Rinse pre-filter frequently.

Build runoff diversion berm/swale around pond. See storm guide and diversion guide.

Pond and Water Gardening: Troubleshooting a Newly Inherited Pond: Overflow, Black Water & Dead Filter; Why Are My Pond Fish Hiding? Solving Murky Water and Skittish Koi; Green, Smelly Small Pond: Why Filters Fail and How to Fix It; New 1000-Gallon Koi Pond: Filter Maintenance, pH, Vacation Feeding, and Adding Turtles/Frogs; Cleaning Pond Filter Media: Mud vs. Pond Gold; Building a Pond Filter: Buy, Don't Build; DIY Biological Filter for Small Pea-Soup Pond; Pump and Filter Setup for a Raised Deck Filter and Waterfall; Choosing an External Filter for a Whiskey Barrel Pond: Bird-Proofing and Debris Control; Bloodworms in Pond Filter: Beneficial, Not Leeches

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