We just tried in April 2026 to start up our swamp cooler system after Chuck's winterized it last Autumn. The plumber said two copper lines were still connected and that not all of the lines were properly blown out last Autumn. So, now 1/2 inch and 1/4 inch copper water lines to our three rooftop swamp coolers are split and need replacement at an estimated cost of $698. I do not recommend Chucks. We trusted the work to be done and it was not even completed, yet we were billed for it and told it was completed.