It depends on the way it is set up, normally the water is from the same source, but using water in the toilet for any purpose other that flushing is NOT recommended..
the study show that toilet seats are cleaner because lunch plates have 10 times more germs than toilet seats.
uh...no ?
Maybe the kitchen is further away and on smaller pipe.
Burn your tongue and throat is about the only issue. Hot faucet water is no different than cold water you heat on the stove or drink in your coffee.
It depends on where you are. If your water comes from aquifers that are in limestone rock and you are near an industrial are it is likely the faucet water will be slightly higher pH than the rain water.
No. It takes much more than water pressure to turn on the water faucet. At most, there is a leak if anything at all.
It isn't. toilet water will sit in the tank just like tap water sits in the pipes, one is about as fresh as the other. Toilet water sits for a spell. If it sets for a long enough time, the chlorine will evaporate out of it. This takes 24 hours to be effective. Thus, it is cleaner than tap water, which has no evaporation rate.
Shutting off the valve doesn't drain anything. You need to open something lower than the faucet and open that faucet to let air take the place of the water.
The drain is getting plugged and the toilet is lower than the washing machine drain so it is easier for the water to come up in the toilet than to go straight out the drain. Put some drain cleaner down the drain where the washing machine drains and that may solve the problem.
The volume of water that comes out of the tub faucet is much greater than the volume of water that comes out of the kitchen faucet. Let's say that the bathroom is twice as far from the water heater than the kitchen, so twice as much water has to be run to get the hot water. If the tub faucet allows more than twice as much water to pass through, then it will get there faster.
Very simple. Run each faucet until there is no more air. This usually only takes a minute or two per faucet. Remember air is lighter than water and will quickly rise, thus exiting the faucet additionally the strong flow of water out of the faucet is a huge plus.
Cleaner than what . - Well water is often, but NOT always cleaner than surface water. Always get a lab test to ensure water is fit for humans, DON'T just assume it is, your family's health is at risk.