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Septic Tank
Description:
Septic tanks are under-ground tanks that receive wastewater flo
of a building. They generally consist of a double-chambered, ba
filter installed in the outle
opened, pumped and checked. Older tanks are often single-compartment and
may not have an outlet filter or access risers from the surface. Strongly consider
having older tanks retrofitted with risers and an effluent filter for lon
and maintainability.
Function:
The s
eptic tank is a primary tank that collects all wastewater coming into the
septic system. With
This allows the heavy solids to sink and the lighter ones to float, while a clear
zone forms in the
middle. Clarified effluent from this clear zone is then passed on
to the rest of the system.
Mainte
nance:
• Check the septic tank annually
21 for more informati
• Pull and clean the effluent filter as necessary (hose solids back into tank).
• Visually in
spect the tank for damage,
• See Secti
ons 1 & 2 for more infor
IN
FROM
HOUSE
TANK
WALLS
t. Access risers to
the use of baffles in the tank, wastewater is slowed down.
and have it pumped when needed. (See page
on on when to pump).
mation on protecting your tanks.
ACCESS
RISERS
BAFFLES
FLOATING SOLIDS
CLEAR ZONE
1ST COMPARTMENT
SETTLED SOLIDS
- 40 -
the surface allow the
leaks, etc.
EFFLUENT
FILTER
2ND COMPARTMENT
wing directly out
ffled tank with a
tank to be
ger system life
OUT
TO
SYSTEM
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