Fact from Wikipedia
The difference between pipes and tubes is simply in the way it is sized. PVC pipe for plumbing applications and galvanized steel pipe for instance, are measured in IPS (iron pipe size). Copper tube, CPVC, PeX and other tubing is measured nominally, which is basically an average diameter. These sizing schemes allow for universal adaptation of transitional fittings. For instance, 1/2" PeX tubing is the same size as 1/2" copper tubing. 1/2" PVC on the other hand is not the same size as 1/2" tubing, and therefore requires either a threaded male or female adapter to connect them. When used in agricultural irrigation, the singular form "pipe" is often used as a plural.7
Pipe is available in rigid "joints", which come in various lengths depending on the material. Tubing, in particular copper, comes in rigid hard tempered "joints" or soft tempered (annealed) rolls. PeX and CPVC tubing also comes in rigid "joints" or flexible rolls. The temper of the copper, that is whether it is a rigid "joint" or flexible roll, does not affect the sizing.7
The thicknesses of the water pipe and tube walls can vary. Pipe wall thickness is denoted by various schedules or for large bore polyethylene pipe in the UK by the Standard Dimension Ratio (SDR), defined as the ratio of the pipe diameter to its wall thickness. Pipe wall thickness increases with schedule, and is available in schedules 20, 40, 80, and higher in special cases. The schedule is largely determined by the operating pressure of the system, with higher pressures commanding greater thickness. Copper tubing is available in four wall thicknesses: type DWV (thinnest wall; only allowed as drain pipe per UPC), type 'M' (thin; typically only allowed as drain pipe by IPC code), type 'L' (thicker, standard duty for water lines and water service), and type 'K' (thickest, typically used underground between the main and the meter). Because piping and tubing are commodities, having a greater wall thickness implies higher initial cost. Thicker walled pipe generally implies greater durability and higher pressure tolerances.
Wall thickness does not affect pipe or tubing size.8 1/2" L copper has the same outer diameter as 1/2" K or M copper. The same applies to pipe schedules. As a result, a slight increase in pressure losses is realized due to a decrease in flowpath as wall thickness is increased. In other words, 1 foot of 1/2" L copper has slightly less volume than 1 foot of 1/2 M copper.citation needed
Demand for copper products has fallen due to the dramatic increase in the price of copper, resulting in increased demand for alternative products including PEX and stainless steel.
Connecting the new tubs for water supply and sewerage
After a time, use the bathroom we want to carry out any changes to it. Therefore we decide to buy a new bathtub. Sometimes such exchange of passes without any problems. Sometimes, however, it must be connected to a hot water supply and sanitation with the new connection, which must be done by a plumber. Then you can connect even with the need to chisel tiles to be able to perform such a connection, which will surely be reliable. Similarly, in case of replacement of the bathtub for a shower especially if our network plumbing is old materials Coupling. In recent years it has become fashionable also connect to the network plumbing the shower tray and another sink, where we can eg.
Each of plumbers usually performed minor plumbing services. These include the repair of the broken washing machine and a dripping faucet. The problem with a broken washing machine happens to its owner very troublesome, because the water leaking from the machine may flood the entire bathroom or the finished washing remove it clothes, which is a powder. In such a situation as soon as we call for help to the plumber. Equally often we call a plumber to repair a leaky faucet. Sometimes it turns out that you need to replace it, only the gasket, and another time the culprit turns out to be defective cam. Normally, we release a new cam will be covered. We will have to pay only for services rendered by the plumber.