Rainwater harvesting
A rainwater collector is inserted into the rainwater downpipe component which is used to derive, as well as filtering of rainwater in cisterns or rain barrels. As part of the rainwater use it fulfills an important purpose between the roof drainage and water storage.
Form and function
The remarks may be made differently from metal or plastic in form and function. The oldest and best-known type of operation is that of a rain water flap. A semi-circular the diameter of the drop tube adapted elongated " sheet ", which is mounted hingedly in the case of two horizontal tube attachment points. When closed, the rain water runs freely inside past the door. By opening a piece is rotated into the downspout into it and passes the Regenwasserfluß from the downpipe to or out; e.g. in an established rain barrel.
Variations
Newer rainwater collector or also referred to as rainwater course, have screens or filters and are used in the downpipe. Debris are filtered out or, depending on the design further purged via the underneath standpipe drains.
Fallrohrsieb
A Fallrohrsieb is usually made of a metal mesh filter in the downpipe. The screen keeps leaves, moss and other debris or foreign objects back mechanically. It is used to protect the succeeding pipes from clogging or to clean the water before a rain water use (eg toilet flushing ).
Screen cleaning
For the regular and necessary cleaning of the downpipe wire, it should be easily accessible accordingly. For maintenance or for the removal of rubbish a easy open flap on Fallrohrsieb is usually mounted. Without maintenance, there is the risk that a backlog in the downpipe and the water is above the downspout screen, even to high outlet in the extreme case of the rain gutter. Even in a highly contaminated roof covering Fallrohrsieb is not appropriate, since even a purified Fallrohrsieb can clog even with a heavy rainfall and run at the same rain event to a backwater.
Downpipe filter
Downpipe filters serve a first rough treatment of rainwater and separate unlike downspout screens, where leaves and the like are merely retained in a regular cleaning screen, the water in two fractions. A fraction contains a lot of foliage and the like, relatively little water and is discharged into the drains. The second fraction is relatively clean water is diverted to the further use and stored in the rule. Since downpipe filters derive the rubbish into drains, they are low maintenance compared to downspout screens.
Technology
Although the term suggests downspout that the water flows in free fall, it actually runs on the inner wall of a tube case along. Leaves, moss and other debris, however, fall within the tube lumen. This effect make downpipe filters utilized by draining water from the inner wall of the tube and discharge side.
Other versions
On the downpipe filter also another pre-filter can be followed or combined with them. Depending on the design of these various filters as: called inline, cone, cartridge, tube, Backwash, sinus, slit -, volume -, fluidized fine, central or spin filter.
Alternatives
Even before the inlet into the inlet funnel or downspout leaves and other debris can be prevented by fixed on the rain gutter rain gutter guard. A float, an automated filling of cisterns or rain barrels are controlled without causing a flood, as has been found with manually operated valves.