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PUMPOUT PROCEDURE
PROCEDURE
1. Determine the amount of mixed liquor suspended solids by using a "Sludge Judge" type
sampler through the 4" vent/sample port riser.
2. Leave the air compressor for the ATU running.
3. Insert vaccum hose into the main access riser. Skim off any floatable solids on the surface
of the clarifier and lower to the bottom of the clarifier.
Caution: Care must be taken not to damage the discharge tee assembly.
4. Pump out 80 to 90 percent of the ATU. Then remove the vacuum hose.
5. Insert a water hose into the main access riser. Wash down the clarifier walls and partially
refill the ATU with clean water.
6. Repeat step 3 and refill the ATU with clean water.
*Never leave tank empty.
*Always use licensed pumpers/haulers for this task.
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Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • 1-800-219-9183 • www.deltatreatment.com
SLUDGE JUDGE
VACUUM HOSE
VACUUM HOSE
REFILL WITH CLEAN WATER
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