Installation, Operation and
Maintenance Manual
OneFlow
®
Anti-Scale System
Chemical-Free, Salt-Free Scale Prevention
Model OF744-10
Model OF844-12
Model OF948-16
Model OF1054-20
Model OF1252-30
Introduction
The Watts OneFlow
®
system provides protection from scale
formation throughout the plumbing system. The OneFlow
®
system can be installed at the point of entry to treat your
entire system, both hot and cold water, or it can be located
directly before a water heater or other device (e.g. steamer,
etc) that requires protection from hard water.
OneFlow
®
reduces or eliminates scale formation on internal
plumbing surfaces as well as reducing spotting and streak-
ing normally associated with hard water.
OneFlow
®
prevents scale by transforming the normal dis-
solved hardness minerals into undissolved crystal micro-par-
ticles. These crystals stay suspended in the water and have
a greatly reduced ability to react and attach to surfaces like
dissolved hardness does. Therefore, the problem of internal
buildup of scale in pipes, water heaters and on fixtures and
glass is greatly reduced.
OneFlow
®
is not a water softener – Low or phosphate-free
cleaning products are recommended to achieve optimum
results. Modern surfactant or detergent based, liquid soaps
are preferred over old-fashioned caustic solid soaps.
Unlike softened water, OneFlow
®
treated water maintains
the beneficial essential mineral content of your water and is
safe to drink.
IOM-OF744/844/948/1054/1252
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
Systems are certified through WQA
against NSF/ANSI Standards 61 and 372
for Lead Free compliance.
Summary of Contents for OneFlow OF1054-20
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