How Three Flooded Basements Forced Me to Solve Weak Hot-Water Pressure
https://quebeck-wiki.win/index.php/Why_Your_Sink_Gurgles:_A_Case_Study_in_Trapped_Air,_Blockages,_and_the_Chemical_Cleaner_Myth
I learned plumbing the hard way. After three flooded basements, a stack of emergency repair receipts, and a sleepless night or two, I finally understood why the cold taps in my house had full pressure while the hot taps just dribbled