The Sand Commander is a four-phase separator used during the frac plug drill-out portion of well completions and production well workovers that separates all hazardous material, capturing 99% of reservoir gases and 95% of the sand. It transfers clean, reusable water on location. It is an efficient and cost-effective ESG and HSE compliant sand extraction solution and water filtration system, providing eco-friendly completions, optimized flowback operations (with integrated data acquisition), enhanced safety and improved well completion/production economics.