I also have a very muddy sediment pond. Be sure you know why it's muddy! I assumed mine was due to bullhead and pumped it down with a screen on the intake pipe. Once it was low I threw a net 30+ times... Hundreds of crayfish! Not 1 bullhead.
It may be obvious but take a jar, bucket or jug full of water and set it aside. If it settles you have something stirring the bottom.


How are you going to know unless you try!

NW TX 2ac main pond fed from 1100ac watershed going through 2 2+ac sediment ponds. 1st filled 10/2018
900BG, 200RES, 200HBG, 100CC and 23# FHM...."Free" BH, GSF GSH, LMB & ??? 75LMB 3/2020
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