Coolant leak from upper radiator hose, 5sfe Options

[ILoveMySilly97]

So I've been having issues with my cooling system for a long while now. It just never bothered me til now. I took a look at it after my bro drove it back from school. Which was about 20 min away most of it was on the highway. I popped open the hood just to look around and check my fluid levels since the engine is warm. I noticed it started leaking AGAIN at the upper radiator hose. It's leaking through the inner threads of the radiator hose. Now the side that connects to the engine. The color of the coolant that was leaking was brownish? I'm thinking it might be rust. The last cooling system flush I did was almost a year ago. At that time I had replaced thermostat, thermostat housing, top and bottom radiator hose, both ECT sensors, radiator cap, radiator and the fan temp sensor. My thermostat is designed to open at 175 degrees Fahrenheit. I know it opens because when I touched my bottom radiator hose it was warm but my top radiator hose was hot. I'm just wandering why it'll leak in the inner thread? Only possible answer is possible over pressure? Blockage in the engine somewhere? Any suggestions besides doing another cooling system flush?

[delusionz]

to flush the system you need to build up pressure,

so if you jam the garden hose in one pipe, put your hand over the other end its gonna come out of

just lightly cover it though as mains water pressure is 10x greater than what your cooling system should ever experience

i wedge the garden hose into the top radiator hose, and put my hand over the end of the lower hose, buildup and release, buildup and release, should get the **** loose.

i also do the same to my heater core, garden hose through the heater outlet, throttle the inlet

this is called reverse flushing and knocks loose the crap thats accustomed to flowing and blocking against the direction it flows