Mr Fix It Plumbing 4320 Atlantic Ave #230, Long Beach, CA 90807 (562) 988-2454 http://www.mrfixitplumbing.com/ Paul did an extremely thorough work of cleaning the drain and describing what he was executing. He is an excellent ambassador to your company. The company's plumbers work on tankless drinking water heaters from https://maps.app.goo.gl/JAqevuQwVnnK5SJu6