Water supply and sanitation has been a primary logistical challenge since the dawn of civilization.Where water resources or infrastructure or sanitation systems are insufficient for the population, people fall prey to disease, dehydration, and in extreme cases, death. Major human settlements could initially develop only where fresh surface water was plentiful, such as near major rivers.Over the millennia, technology has dramatically increased the distances across which water can be relocated, but the availability of clean and fresh water remains a limiting factor on the size and density of population centers, and is expected to remain so into the foreseeable future.Źródło: https://en.wikipedia.org/wiki/History_of_water_supply_and_sanitation
This will allow you to reach those potential customers who do not normally use the Internet, but may need some help hydraulic system.In contrast, the best advertisement of the hydraulic plant can provide good feedback of its existing customers.
Plumbing equipment includes devices often hidden behind walls or in utility spaces which are not seen by the general public.
New tools have been developed to help plumbers fix problems more efficiently.For example, plumbers use video cameras for inspections of hidden leaks or problems, they use hydro jets, and high pressure hydraulic pumps connected to steel cables for trench-less sewer line replacement.Źródło: https://en.wikipedia.org/wiki/Plumbing#Equipment_and_tools.