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United Industries, Inc.
P.O. Box 58
Sterling, KS 67579
800-835-3272 • 620-278-3160
Fax 800-500-3115 • 620-278-3115
www.towerflo.com
Data presented here is the best available at the
time of publicaton. United Industries and/or its
representatives assume no liability for its use.
Form TFH-INSTALL4/4:11/07
Installation
Series
TFH
CAUTION
Extreme care must be taken while installing filter media to prevent damage to the lateral assembly.
STEP 5. FILTER MEDIA LOADING
A) Open the air relief valve. This is a pressurized system which should never be opened without first bleeding off
the pressure; make it a habit to always open the air relief valve even when the system is not pressurized!
B) Remove the manway by loosening and removing the yoke and bolt assembly and the manway cover and gasket.
Never attempt to open the manway while there is pressure in the filter.
1)
TFH-18
filters have a flanged and gasketed top head. Remove the bolts, nuts and washers from the flange.
Carefully lift or hoist the top head off of the filter vessel while assuring that the gasket is protected from damage.
C) In
TFH-18, -24, -30
filters, inspect the underdrain laterals and ensure the slots in the laterals are facing down-
ward. In
TFH-36
filters, the underdrain laterals are shipped loose for field installation in order to prevent damage
to the laterals during shipment; install these laterals.
D) Confirm that the vessel drain plug in the bottom of the vessel and the hand hole in the side of the vessel are in
place and secured.
E) Fill the tank with enough water to just cover underdrain laterals. This water will act as a buffer to protect laterals
during media loading.
F) With one person outside the vessel handing media in managable quantities to another person inside the vessel,
gently "float" media under and around the laterals until they are completely covered, then slowly add the rest of
the media provided with the unit. See the specification table found in this manual for required amount.
G) Replace and secure the manway cover or the flanged top head.
NOTE
1 Cubic Foot of .45-.55 mm sand media = 100 lbs