Galvanized pipes are steel pipes that have been coated with zinc to prevent corrosion and rust. Galvanized pipe was often used in residences constructed before 1960. Galvanized pipe was designed as an alternative to lead pipe for water delivery lines. Today, we know that decades of exposure to water causes galvanized pipes to corrode and rust on the inside.
Galvanized pipes have a nickel-like appearance when originally installed. However, depending on its surroundings, galvanized pipe may become considerably duller, lighter, or darker as it ages. We’ve also seen homes with painted water pipes, so it can be tough to detect at first glance.
If you can’t tell by looking at your pipes, there is a simple test you may use to determine whether they are galvanized. Simply take a flat head screwdriver and a powerful magnet and get to work. Begin by locating your water line and scratching the pipe with the screwdriver.
Between 1880 and 1960, galvanized pipes installed on water lines were dipped in molten, naturally occurring zinc. Because naturally occurring zinc is impure, these pipes were bathed in zinc containing lead and other impurities. The zinc coating extended the life of the steel pipes, but it also added a small amount of lead and other elements that could harm residents.
Furthermore, if your galvanized pipes were ever linked to lead plumbing (including service lines), you should be concerned. Small bits of lead could have become trapped inside galvanized steel pipes due to corrosion. Even though the lead piping was removed years ago, the galvanized steel pipes could still leak the trapped lead into the water flow on a regular basis.
The table below shows the latest retail August 2022 prices of Galvanized Steel Pipe in Philippines Peso price per pieces including its size, standard dimension and thickness
Price and Standard Size of GI Steel Pipe per pc in the Philippines
Commercially Available Size is 6 meter per piece.
UPDATED: Construction Material Prices for Galvanized Steel Pipe in the Philippines (August 2022)
UPDATED: All Construction Prices are based on retail prices around hardware in Metro Manila
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