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RepWars Briefing - Questions & Answers
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Question...
"Hi,
We have a school property in Delaware we are working on. The site plan calls out a septic system with a "DOSING STATION".
Could you please explain what a DOSING STATION is ?"
RepWars Reply...
A dosing system provides for the periodic discharge of a determined volume of effluent to a drainfield. Dosing uses the principle of wetting and resting, which provides multiple daily dosings of effluent to a subsurface soil absorption system with a period of resting and re-aeration between doses. This resting period is important in maintaining the aerobic condition of the soil absorption system in and around the distribution trench or bed, and thus slowing the development of a clog of soil interfaces and subsequent failure that naturally occurs over time.
When a tank will discharge into a leaching field greater than 500 feet in length, a dosing tank and siphon should be incorporated into the system. The rush of sewage that occurs when the siphon discharges results in better distribution throughout the leaching field. While the dosing tank is refilling, the resultant resting period is favorable to maintaining aerobic conditions in the receiving soil. The dosing tank should have a capacity about 60 to 75 percent of the interior capacity of the leaching pipe to be dosed at one time and should automatically dose once in 3 to 4 hours. Double the amount of dosing siphons for each additional 500 feet of leaching tile or pipe.
Click Here to view an illustration of a typical septic/dosing system...
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