direct cold water supply? To what? For what purpose? This question can not be answered. The question is incomplete. Please and use for water location of water use amount and discretion of use
If you are referring to a regular building, the cold water feed pipe goes directly to all cold faucets, toilets and hot water tank. The purpose seems obvious.
direct water system
supply potable water
A stormwater control system is typically used to direct water to the storm drains in order to prevent flooding and maintain an adequate drinking water supply.
the difference are as follows. the direct water supply comes from the outside main water supply directly into the sink. the indirect water supply has mains cold water collected in a cistern which in turn supplies water to the sink.
to supply the flower with food and water from the soil
to supply water and give a home to the wildlife.
the water cycle constantly renews the earth's supply of fresh water.
A qanat is a water supply system used to supply a reliable amount of water to human settlements
Sydney Water Management System.
The Plumbing system with your house has the role of transporting the water in the water supply system or the hot water from the heating system into your home. It is a set of well connected pipes and heating bodies that play the key role in heating up your home. I hope this helps. Bibika
The Romans used a piping system called an aqueduct to supply their cities with water.
Vent - Cold Water Supply - Drainage - hot water supply /return
the purpose is to absorb food and water
Simply to provide a backup supply should the main supply from the water company be cut off
Farmers needed to develope a system to control their water supply to stop flooding also they would get more food.
to clean the people
the drainage basin
Water, especially in the ocean, is in abundant supply and it can be recycled easily, too.