rainwaterguide

Capture roof rainwater without conventional gutters by choosing a safe collection edge, directing runoff, and protecting storage from debris and overflow.

Complete roof calculations for rainwater harvesting by finding catchment area, applying rainfall depth, and allowing for runoff efficiency and system losses.

Route downspout water into a rain barrel with a correctly positioned diverter, screened inlet, stable base, controlled overflow, and accessible garden outlet.

A curve number has no single runoff-coefficient equivalent; compare the two hydrology methods and calculate a scenario-specific value when one is required.

Making non-potable water drinkable requires source-specific testing and staged treatment; learn why a single filter or boiling step may be insufficient.

Build a garden rain barrel with covered storage, a screened inlet, secure base, useful spigot, and overflow that drains safely away from the foundation.

Solve a pump dry-run problem by stopping the unit, restoring its water supply and prime, checking for air leaks, and adding protection against recurrence.

Protect a water pump from dry running with reliable level or flow controls, correct priming, leak checks, and an automatic cutoff matched to the system.

Prevent water-tank overflow with a correctly sized, unobstructed outlet routed to a safe discharge point, plus controls suited to pumped or automatic filling.

One inch of rain in a day can produce substantial roof runoff; see how catchment area, storm intensity, drainage, and storage capacity shape its impact.