I live in Mexico. In my house, like most houses here, the water supply comes from a roof-mounted tank. Over time, sediment collects in the bottom of the tank and makes the water dirty. My question: If I drain most of the water out of the tank, could I use my Ridgid wet/dry vac to suck up the sludge at the bottom? Should I remove the filter first (because the sludge would be wet), or would the grit in the sediment ruin the motor?