Difference between Rains and Rainwater

RAINS vs RAINWATER: NOUN

Water (for a house etc) sourced from rain which has not joined a spring, stream or river, pond, lake or sea.
Rainfall.
Water that has fallen as rain and contains little dissolved mineral matter.
Drops of fresh water that fall as precipitation from clouds

Rainstorm, Monsoons, Downpour, Rainstorms, Precipitations, Downpours, Tents, Pours, Soakers, Showers, Floods, Rain down, Pelting, Rainwater, Rainfall

Floodwater, Downspout, Irrigation, Groundwater, Sewage, Stormwater, Storm, Raining, Rainy, Precipitation, Rainfall, Drainage, Drains, Water, Rain

Weather, Duststorm, Drenching, Thunderstorm, Storms, Snowfall, Precipitation, Thundershower, Rainstorm, Downpour, Pours, Soakers, Pelting, Rainwater, Rainfall

Leachate, Floodwater, Irrigation, Groundwater, Sewage, Stormwater, Storm, Raining, Rainy, Precipitation, Rainfall, Drainage, Drains, Water, Rain

It rains, it pours, it rains, it pours I came, I saw.
Pale moon rains, red moon blows; White moon neither rains nor blows.
My classroom has leaks in the ceiling and every time it rains, it rains on my computers.
November is usually short rains but it is not often rains all the days so Climbing is possible.
When it rains it rains hard and moves on quickly.
When it rains in August, it rains honey and wine.
If the cultivator has sown the seeds and is awaiting rains, failure of rains will hamper production.
When spring rains were delayed, the interval between the onset of rains and conceptions decreased linearly.
The spring rains failed entirely, and the summer rains were three weeks late.
Planting with the first rains or last rains may be agronomically sound but financially disadvantageous.

Rainwater The relatively clean component of the rainwater that has not been polluted.
If rainwater is your sole source of water, you will need at least a 30,000 litre rainwater tank.
Rainwater harvesting is a widely used method of storing rainwater in the countries presenting with drought characteristics.
Summary of water quantity in rainwater storage tanks and from rainwater building drainage area at greenhouse.
Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground aquifers.
Rainwater: One PVC Rainwater pipe to ground level per every 40m covered area.
Assessment of rainwater quality from rainwater harvesting systems in Ontario, Canada.
International Rainwater Catchment Systems Conference: Mainsteaming Rainwater Harvesting, New Delhi, India.
Christia Zimmerly, Sophie Rainwater and Paige Rainwater, all of Mt.
Conserve rainwater and install rainwater harvesting in all building.