bp oil spill and drinking water supply

The so-called "green" collection of rainwater from the roof to rain barrels above ground tanks or sump that is reducing some of our overloaded municipal wastewater, storm-water drainage systems. However, could not do it by installing underground tanks similar to those used in the 1800s and early 1900s?

Description tanks before

Much haciendas of old houses and today still has the remains of a pool of rainwater at the beginning of a meter. These rounds large enough, impermeable to water, the root-free, tanks 500-5000-gallons were made of brick, stone, stone, plaster, cement, or combinations of these materials. Each was covered with a manhole-type aboveground opening quite nice to have a large bucket. This openness has allowed the tank periodically clean out and repaired by the owner or a third party.

Tin or galvanized steel pipes used in the attic of the home, then carrying the rainwater tanks were open and not covered. Therefore, some leaves trees waving in the wind and seeds and other debris could cause in the tanks. For this reason, the suction end of the iron pipe is above the tank floor, where the remains were finally accepted.

This water is relatively clean, smooth supply was connected directly to the long handle pumps Hand installed in the kitchen and bathroom and the bathtub in the main house. Has been tested also on hand pumps in a small building behind the house that served as a summer kitchen and a place to wash clothes, can vegetables, chickens and pigs and slaughter. This source of water was relatively cold, not frozen throughout the year. In general, is used for cooking, washing dishes, cleaning, canning, butchering and bathroom. But it can be drunk, too, after boiling.

Modern tanks

modern tanks operate as described above. However, instead of being built on the land of nothing, are buried prefabricated those in place. In other words, these tanks may be precast concrete containers or prefabricated tanks may be covered with durable plastic screw caps large enough similar to those observed in some trucks lawn treatment.

Also today, aluminum, steel, plastic pipe fittings copper eaves have porous or solid. Therefore, the amount of dirt from entering the tanks on the roofs will be minimal. However, the material finer than sand shed on asphalt or composite shingles must be filtered first time during the harvesting process, others you may be withdrawn the underground tank. The plumbing of the tank is modern thick plastic tube. Of course, the pump will probably be a size and electrical fittings will depend how the collected water is used.

More than likely, because most of us have reliable municipal drinking purified cover supply and bathing water, this water tank is used for outdoor, for sprinkling of lawns and gardens, filling ponds and marshes treated for irrigation of trees and animals and for washing vehicles, driveways, patios, terraces and houses. The three advantages of modern install an underground tank suggest that this technology works well at the moment: 1) that are hidden from view and the way by under-ground, 2) does not encourage the production of algae or mosquitoes in summer, and 3) that preserve the municipal systems storm sewer and water supply.

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