My freshwater tank was full of plastic giblets that kept stopping up different faucets and valves and the freshwater pickup bung was 2' off the bottom of the tank. I couldn't lift water when the gauges said 1/3 full, just sucked air. I blocked the pickup bung on the side, installed a "T" on the low point drain and rerouted the freshwater pickup off the T. I can now drain it dry either way, but still get pieces of plastic trash now and then.
2013 Silverado 2500 HD Duramax/Allison Tuned
Aviator Wright Flyer #1919
"First In, Last Out". 11B4Y
DAV, MOPH, VFW, 5/7 Cav,1/8 Cav Assoc.
11th ABN Pathfinder Co. N7MIP