Because1- water conditions would not allow copper tubing do to the hardness and PH factor2- Labor was cheap and threading galvanized was cheaper then installing copper3- Galvanized is still used in many locations as people do not like to drink water coming out of toxic plastic piping
May indicate rust from galvanized pipe feed lines or dirt in water supply.
There are no hoses that do this. There is only copper pipe, galvanized pipe, or PVC normally use in a home water supply.
Galvanized pipe is used for natural gas lines and pressure vent lines, and for electrical conduits. As a water supply or drain pipe, it is subject to rusting over time.
By developed length of piping and fittings for venting and fixture units connected to it for water supply or drainage
Copper, Brass, Yellow Brass , Red Brass, Galvainzed steel, Galvanized wrought , Yalloy
There are various compounds for this sold in plumbing shops.
That is where the fertile land and water supply was.
black iron
The objective of a water supply it to get water into houses. The function of the pipe it to carry that water and the function of a tap is to control the flow of the water.
Depends on the water quality and what type of galvanized piping was used
You Don't .. You replace them
galvanized iron pipes commonly used on water pipe lines, it is dipped into zinc for corrosion protection