Operator's Manual: Models CB-3500 & CB-5000
9-6
Cleaning the Tank
DO NOT allow water, sludge, or other debris to accumulate in your oil supply tank to the point that non-combus-
tible or harmful materials are drawn into the pump or burner.
Drain water and sludge from the bottom of your tank at least once a year, and more frequently with water accumu-
lation.
NOTE:
If your used oil tank has not been cleaned on a regular basis, a considerable amount of sludge, etc. may
have accumulated on the bottom of the tank. Under these circumstances, it is advisable for you to hire your used
oil hauler to pump the tank. Make sure the tank is pumped to the bottom to remove all sludge, etc. from the tank
(your used oil hauler may charge an additional fee for this type of service). The best time to pump the used oil
tank is at the end of the heating season when the tank is low. This allows sufficient time to refill the tank with
used oil (generated by your company over the summer months) so that you have adequate fuel for the heating
season.
Summary of Contents for CB-3500 series
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