Here’s the update! I removed air filter box and I have two inline hose connections on the hoses there. I had reversed hoses last time. Today I put the 5/8 garden hose repair fitting on my garden hose nozzle, they are threaded! I can control the water that way. I pinched the hoses off with clamps on the engine side on the fittings. Then I took connectors apart. I put the nozzle in one hose and put the water through it. First comes antifreeze, then a lot of rusty looking water, then clean water. Went back and forth flushing both ways, then connected hoses and warmed engine. I now have heat as it should be. It is working fine, drove a few times today and working great! So, between the cleaner, swapping hose connections, and a couple flushes, it’s done!