Failing systems are a major cause of tainted shellfish beds, polluted beaches and contaminated well water. Why does a system fail?
Organic clogging is the primary cause of septic system failure. If a septic tank is neglected and not pumped out on a regular basis, unprocessed solids and debris can overflow out to the leaching field. The field's pipes, rock beds and soil become clogged with grease, soaps and solids. Perpetual dampness is one of the first indications of a problem with a drainfield. If left to continue, a black , slimy organic layer will form that prevents percolation of gray water and cuts off needed oxygen. With nowhere else to go, sewage can overflow onto your lawn, or worse, start backing up into sinks, bath tubs and shower (even worse with a houseful of company!)
Sewage overflows onto your lawn cause a mess and terrible problems. Among which are these common diseases capable of transmission from sewage: Cholera, Gastroenterisits, Infectious Hepatitis, Salmonellosis and Cryptosporidiosis. Many of these are accompanied with fever, diarrhea, vomiting and sometimes are fatal. We urge you if you suspect that raw sewage is being discharged into your yard, that you take action quickly. It will affect not only yourself but the lives of your children, pets and neighbors.
A regular maintenance schedule by far out weighs the costs of replacing a field system which in ballpark figures could add up to anywhere from $4000 and up to five figures. We hope that this site was informative and if you have any questions that you don't hesitate in contacting us. We remind you that if your system requires alterations that you contact your local health authority for specifications in your area.
Pumping Frequency Guidelines
How often a septic tank needs to be pumped depends on the tank’s design and how it is operated. In this chart, the negative factors that affect the pumping frequency are called EFFECTS and the positive factors that reduce the frequency of pumping are called CREDITS.
Consider the frequency guideline from this worksheet AND the conditions observed when the tank is pumped to decide when the tank will next need pumping. No tank should go more than 36 months between pumpings or evaluations!
EFFECTS POINTS FOR EACH FACTOR
Enter 10 points for wastewater that enters the septic system for each of these appliances: Water conditioning unit (water softener or iron filter)
Garbage disposal
Automatic clothes washer
Enter 10 points if you have:
An in-home business (such as daycare, beauty shop)
More than 4 over-night guests at a time, several times per year
A laundry pattern of doing three or more loads/day
Enter 10 points if your septic tank is smaller than indicated
for the size of the house:
HOUSE SIZE TANK CAPACITY
2-3 bedrooms 1000 gallons
4-5 bedrooms 1500 gallons
6-7 bedrooms 1750 gallons
8-9 bedrooms 2000 gallons
Enter the points indicated if the last cleaning was:
FREQUENCY POINTS
1-2 years ago = 0
3-5 years ago= 5
6-10 years ago =10
more than 10 years ago =12
The number of people living and using water in the household affects the cleaning frequency. Enter the number of people for the house size and do the calculation.
HOUSE SIZE # OF PEOPLE LOAD
2 bedroom ______ - 3 = ______ x 3 =
3 bedroom ______ - 4 = ______ x 3 =
4 bedroom ______ - 5 = ______ x 3 =
5 bedroom ______ - 6 = ______ x 3 =
6 bedroom ______ - 7 = ______ x 3 =
7 bedroom ______ - 8 = ______ x 3 =
TOTAL EFFECTS
CREDITS POINTS FOR EACH FACTOR
Enter 10 points if you:
Use a suds-saving or front-loading clothes washer, or do 4 or fewer loads of laundry spread throughout the week
Have two full-size septic tanks or one tank with 150% or more of the capacity required for your house
Enter 5 points if you: Are ULTRA-CONSERVATIVE on water use
Use low-volume toilets (3 gallon or less per flush)
Use low-flow shower heads
Have two or fewer people in the house and bathe fewer than five times per week
Have no one at home for 10 hours or more most days
TOTAL CREDITS
Enter your numbers in this equation to calculate how often your septic tank should be cleaned. 36 - (effects number) + (credits number) = months between pump outs