Septic Systems Installation

Guidelines for designing proper performing OSSFs:

1.Flow equalization for all ATU's
2.Pressurized time dosing to field for systems with primary treatment only
3.Homeowner questionnaire
a.No ATU's if not perpetually occupied
4.Use TCEQ flows to establish average daily flows only
a.Use a project-specific peak flow multiplier for design
5.Do not depend on homeowner for success of system.
a.Automatic zone switching
i.verifiable
b.Automatic filter flushing
c.Automatic field flushing
d.Chlorine disinfection only if provider supplying Cl2 monthly
i.Ozone or UV disinfection, otherwise
e.Flow meter to verify system performance and usage
6.Electronic monitoring, if used, must verify system performance between visits
a.Auditable reporting
b.Verify communication integrity, at least monthly
c.Show system performance
i.Historical, at a minimum
ii.Real Time, for commercial
d.Service Provider's performance tracking
7.Commercial/Institutional Pretreatment Required
a.Determine wastewater characteristics
i.Influent
1.BOD, TSS, pH, COD, FOG, Temperature, Toxicity
2.Multiple samples
3.Multiple days
ii.Effluent
1.BOD >140
2.TSS >140
3.FOG > 10
4.pH = 7.0 approx.
b.Determine flows
i.GPM, avg
ii.GPM, peak
iii.GPD, avg
iv.GPD, peak
c.Determine balance of design using steps 1-5.



Previous Article : Septic System Pumps - - Next Article : Residential Septic System

Featured Articles
Providing Quality Service...Guaranteed In the Greater Austin Area of Travis, Hays, Williamson, Burnet, & Bastrop Counties , Onion Creek, Windmere, The Hills, Hays County, Dripping Springs, Buda, Jarrell, Georgetown, Brushy Creek, Bell County, Misc Locations.
Call (512) 338-1804 for fast, dependable service.
Seller Says "Too Bad" Seller Says “Too Bad” After Homebuyers Find Rotting Septic Tank Under Plywood(From Pumper Magazine, October 23, 2018) A news organization in Cortland Manor, New...
Aerobic System Pumping Aerobic Treatment Units (ATU) generally require more frequent pumping than do septic tanks of comparable size. There are 2 reasons: The...
Aerobic Septic System? Why do so many customers end up dissatisfied with their septic systems?  We feel it starts with nobody asking or even considering the owner's opinion before...
  • Septic Sewage The concentration of the activated sludge solids and the condition of those biological solids determines the effectiveness of...
  • Septic Repairs We're here because nobody else wants to handle other folks' waste, but somebody must. We do the...
  • Septic Tank Treatment (1) NSF-listed treatment units are only certified, and can only handle, residential strength wastewater at their rated flows....
  • Septic Tank Cost You are responsible for maintaing your system. You may wish to hire a professional to make sure your...
  • Cesspools, Seepage Pits Traditionally, a cesspool is a deep cylindrical chamber dug into the ground approximately a yard in diameter and...