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 pipes, which are coated with a layer of zinc to prevent rusting, do not contain lead as a primary component. However, older galvanized pipes may have been manufactured using lead-containing materials or may have lead solder at joints. Over time, corrosion and wear can also cause lead to leach into the water supply if the pipes are damaged or deteriorated. It's advisable to have water tested if you suspect your plumbing may contain lead.
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
That is where the fertile land and water supply was.
black iron
There are various compounds for this sold in plumbing shops.
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.
People often avoid using galvanized pipe due to concerns about corrosion and rust, particularly in plumbing applications where water quality is crucial. Over time, galvanized pipes can accumulate mineral deposits, leading to reduced water flow and potential leaks. Additionally, the introduction of more modern materials, such as PVC and PEX, which are lighter, easier to install, and resistant to corrosion, has made galvanized pipes less popular for both residential and commercial use. Lastly, health concerns regarding lead contamination from older galvanized pipes also contribute to the preference for alternative materials.
Depends on the water quality and what type of galvanized piping was used