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They make power tools, various lubricants. Different hand tools, different types of hoses and valves. Markets and labels, different types of plumbing and filtration.
There are two types of plumbing stacks: A stack vent and a soil or waste stack.
You have to get training from a technical college and apprentice for four to five years. You will learn about blueprints, plumbing codes and regulations, applied physics, chemistry, and math. You will likely have on the job career training as well, like recognizing different types of pipes and how to use different plumbing tools.
Same type of materials used in all types of plumbing EXCEPT plastics in most civilized codes
Irrigation is not really part of plumbing. I'ts related, but has many different techniques and parts.
One can purchase plumbing software at a variety of different retailers. One can purchase plumbing software online at websites such as FieldAware and Skeds.
Plumbing fittings come in all sizes, and to make sure you have the right fitting for the job, you need to measure the pipe you are working on. Just because you are working on plumbing for your entire home does not mean that all the pipes will be the same size. Different rooms in the home require different types of pressure, so the pipes and the fittings will be different sizes. Fittings in the kitchen and bathroom sinks will most likely be smaller than those in the shower or washing machine.
There are many kinds of bad plumbing problems with all their different ways of fixing. You have to be more specific.
The one's with all the money.
They fix leaking pipes and sewers. They do plumbing, for water, gas, waste, and all other types of leaks. They pretty much will do everything you need them to do.
There are several types of "Spuds" used in plumbing
PEX Plumbing offers PEX - A, PEX - B, and PEX - C tubing. PEX -A is the most expensive out of the three. PEX - B is the most affordable out of the three. Lastly, PEX - C is the cheapest out of the three.