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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 TFW-INSTALL4/4:4/10
Installation
Series
TFW
CAUTION
Extreme care must be taken while installing filter media to prevent damage to the lateral assembly.
NOTE
1 Cubic Foot of .45-.55 mm sand media = 100 lbs
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) Un-thread the tank lid locking ring (never attempt to open the vessel while there is pressure in the filter) and
remove the lid and lid o-ring.
C) Inspect the filter’s internals for any broken of loose components, especially the underdrain laterals, caused by
shipping damage. Replace if necessary.
D) Fill the tank half-full with water to cushion the underdrain laterals during media loading.
E) Remove the top diffuser from the internal diffuser pipe (30" filters have two diiffusers) and place the flexible air
tube to the side, out of the way.
F) Cover the internal diffuser pipe to prevent sand from entering this pipe.
G) 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 on Page 8 of this manual for required amount.
H) Replace tank lid as follows:
1) Clean all filter media and debris away from the neck of the filter vessel, inside and outside
2) Inspect the lid o-ring for cuts, nicks, etc. If damaged, replace with new one.
3) O-ring has been coated with silicone lubricant at the factory. If lubricant has become dried, hardened or dirty
with sand or debris, clean and re-lubricate (Dow 111 or equivalent).
4) Place lid with o-ring into vessel neck. Align lid locking ring on vessel neck. Tighten locking ring slowly. As it
tightens, the o-ring will compress and the lid will slide down fully into the neck; then complete tightening.
