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  2. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.

  3. Sustainable drainage system - Wikipedia

    en.wikipedia.org/wiki/Sustainable_drainage_system

    Retention ponds such as this one in Dunfermline, Scotland, are considered components of a sustainable drainage system. Sustainable drainage systems (also known as SuDS, [1] SUDS, [2] [3] or sustainable urban drainage systems [4]) are a collection of water management practices that aim to align modern drainage systems with natural water processes and are part of a larger green infrastructure ...

  4. Stormwater fee - Wikipedia

    en.wikipedia.org/wiki/Stormwater_fee

    This system imposes a tax that is proportional to the total impervious area on a particular property, including concrete or asphalt driveways and roofs, that do not allow rain to infiltrate. In other words, the more area covered by impervious surfaces the more stormwater is generated and conveyed to the sewer , so the higher the stormwater fee.

  5. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    the design drain spacing (L) can be found from the equation in dependence of the drain depth (Dd) and drain radius (r). Drainage criteria One would not want the water table to be too shallow to avoid crop yield depression nor too deep to avoid drought conditions. This is a subject of drainage research.

  6. Permeable paving - Wikipedia

    en.wikipedia.org/wiki/Permeable_paving

    Some estimates put the cost of permeable paving at about one third more expensive than that of conventional impervious paving. [20] Using permeable paving, however, can reduce the cost of providing larger or more stormwater BMPs on site, and these savings should be factored into any cost analysis. In addition, the off-site environmental impact ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Inventory turnover - Wikipedia

    en.wikipedia.org/wiki/Inventory_turnover

    In accounting, the inventory turnover is a measure of the number of times inventory is sold or used in a time period such as a year. It is calculated to see if a business has an excessive inventory in comparison to its sales level. The equation for inventory turnover equals the cost of goods sold divided by the average inventory.

  9. Today's Wordle Hint, Answer for #1298 on Tuesday ... - AOL

    www.aol.com/todays-wordle-hint-answer-1298...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1298 ahead. Let's start with a few hints.

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