Having trouble with your Essco pump? PumpMan Socal can help. PumpMan Socal is an authorized service center for Essco Pumps. We service many large industrial and commercial properties that choose us because of our 40 years of experience in the industry and our fast, reliable service. With Southern CA’s largest fleet of pump-service trucks, PumpMan Socal is a dedicated pump service company dealing with troubleshooting, maintenance, repairs, and installations.