Pump churnig up muck...help.
I have about 4 inches of clean sand on the bottom of my liner...well it used to be clean, now my water is always a bit murcky...not algae, just muck. I unplugged the filter overnight to do some maintenance and the next morning all the particles had settled down and it was crystal clear. I have the pump in a basket with lava rocks and wrapped up in plastic screen and quilt batting, but it churns up the yuck. What am I doing wrong? It was so pretty without the pump, but it runs through a waterfall/filter and aerates the water, so I dare not unplug it! If I clean out the bottom it will be a huge undertaking and disturb the critters who dwell there. What am I doing wrong? Its a 1200 gallon pump and the pond is about 1700, so its not over large.