>>12349239That calls for the 3 Liter test
Draw 3l of water and discard then fill a glass and taste the water,
if its still tastes different draw a large amount of water and taste it then.
after that the stagnant water inside the pipe is gone and you get fresh water from the main water pipe.
if it tastes good and equal then youre pipes are the problem, maybe you use youre kitchen sink less also every time you flush the toilet you also get new water at the bathroom sink
