Pumping Your System; Why Pumping Is Important - Mason County Public Health Septic System User Manual

Care and feeding of on-site sewage system
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• If the reserve area has been left with natural trees and vegetation, it is best to
keep it that way. Clearing can damage soil and make your future system
more expensive if not done very carefully.
• If you want to landscape your reserve area, the same rules apply as for your
regular system.
• Remember – It's not if but when, so treat your reserve area like gold.

Pumping Your System

Why it's important
Having your tanks pumped is important. Solids exiting the house build up in the
septic tank and often in the pump tank. If the solids build up too high, they can
plug the baffles in your septic tank, causing backup in the house. Solids can also
be forced into your drainfield (or sand/gravel filter, etc.) causing it to plug and fail.
WHEN IS IT TIME TO PUMP?
SOLIDS ENTER THE TANK FROM THE HOUSE
AND EITHER FLOAT OR SETTLE.
THE TANK NEEDS TO BE PUMPED WHEN THE
SOLIDS BUILD UP ENOUGH TO PASS
THROUGH THE OUTLET BAFFLE.
IN
FROM
HOUSE
Note: When having the tank pumped, make sure to pump
the second compartment. If you have a pump tank,
ACCESS
RISERS
OUTLET BAFFLE
FLOATING SOLIDS
3" MIN MUM
CLEAR
ZONE
12" MINIMUM
SETTLED SOLIDS
have it checked and pumped if necessary.
- 21 -
PUMP THE TANK IF:
* There is less than 3"
between the bottom of
the floating solids and
the bottom of the
outlet baffle
* There is less than 12"
between the top of the
settled solids and the
bottom of the outlet
baffle
OUT
TO
SYSTEM

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