Du-all was prompt. Very pleasant on the phone. Tech called me from my yard. Quoted me $800 to replace a filter and pump out the tank. I told him I thought it seemed high and asked if they could do it for $700. I had no idea what it costs so I agreed and they completed the job. He took my credit card over the phone. My neighbor had called her plumber not knowing I had Du-all coming out.. Well to my surprise the company my neighbor called quoted $250. When I saw the quote I called another company and asked them what it would cost to do exactly what Du-All's invoice said. The next quote I got was $275-$300. I called Du-All and asked for a manager to find out why I was ripped off. I never got a call back. WATCH OUT!!!!!!!!!