James, I had similar problems with my pond the first few months after it filled. Lots of exposed clay!

In my case it eventually cleared on its own. But I did test alum in a jar, and it cleared the suspended clay beautifully. You might run that test to see if it would work.

PS Be very careful about using salt. Many suppliers add a tiny bit of arsenic to prevent caking, such a tiny amount they don't even list it as an ingredient. Harmless to humans, but has been known to kill fish.

Last edited by anthropic; 04/17/17 11:59 PM.

7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160