Cast iron pipe
The cast iron pipe is heavy, but it is very durable and very common. Compared to plastic, the cast iron pipe will be much quieter, and a lot more durable, and will better withstand chemical and mechanical pipe-cleaning equipment.
Galvanized steel pipe
Galvanized steel pipes are available in different lengths and diameters, and have an anti-rust coat on their outside and insides. Connections are usually made by cutting threads into the pipes, this may be problematic, as the cutting is made after the pipe was anti-rust coated so any exposed cut part will rust. These pipes are very strong, and will last for a long time, they are often used for the transporting of gas as well as water. Galvanized steel pipes are rough, and after years of usage, mineral from the water that runs in them will accumulate on the inside and narrow the diameter of the pipe, which is of course an unwanted outcome.
Copper pipe
Copper pipes are considered excellent pipes; they come in varieties of soft, flexible, and hard, have a long life expectancy, and are not affected by corrosion. It will be the best option to supply hot/cold water to a modern house. The price for copper pipes is a little higher than other types of pipes and so is their installation. Connections are made by soldering two copper pipes to a copper connection piece. These pipes can be bent or curved relatively easily, which is a great advantage not available with other types. Copper pipes require pressure chambers to avoid the “water hammer”, a sound they may produce when a sudden turning on/off of water occurs.
Plastic pipes
Plastic pipes are the cheapest of all types, it is also simple to install, therefore has low labor costs too. Connections are made easily through cutting of the plastic pipe, plastic fittings, can of plastic cement, and a brush. Its weight is very light, making it easy to support, and it will not corrode. Though, plastic pipes are not strong as other materials, nor can they bend as copper, they tend to crack under heavy loads. They will also be very noisy when water runs through them.
You can use different types of pipe materials in your house, using the advantages each material has to get maximum efficiency, productivity and lower costs.
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