My father-in-law passed away and left behind his property , which we inherited, and a boathouse with two drums full of waste oil he'd collected over the years changing his boat fluids. We looked for a company to help us and we found Dave and Grigco. He was out the next day. Pumped the oil and took the drums too. Now we have a great property we can put up for sale because the old oil thing was holding us back in listing it with the real estate office. I hope this recommendation helps others to find Grigco the way Grigco helped us. Thanks Dave! Sincerely, Heather MacG.