Came to residence for prepaid WSC swamp cooler startup. Equipment functional as of last year. Upon arrival, I removed the cover from the rooftop unit and checked all internal mechanical and electrical components and also the water lines and associated parts. Everything checked out and I turned the water on to the unit. The water line seems good and everything is filling and operating like it should. Checked the float valve and it's operational. Equipment functional upon departure. Thanks for your business and have a great day!