Watts OF948-16 - Manual (Page 4)

4
Iron and Manganese
Just as with conventional water softening media, OneFlow ® needs
to be protected from excess levels of certain metals that can
easily coat the active surface, reducing its effectiveness over time.
Public water supplies rarely, if ever, present a problem. However,
if the water supply is from a private well, confirm that the levels
of iron (Fe) and manganese (Mn) are less than 0.3 mg/L and 0.05
mg/L respectively. Copper should be less than 1.3 mg/L.
Copper
Copper usually originates from new copper plumbing upstream
of the OneFlow ® system. If this condition exists, we recommend
waiting 3-4 weeks before placing the system in operation. This
will allow the copper surfaces to be fully flushed and develop a
natural protective surface. To further minimize any problem with
excess copper, avoid applying excess flux on the inner surfaces
of the pipe and use a low-corrosivity water soluble flux listed
under the ASTM B813 standard. Once the plumbing connections
are complete, place the OneFlow ® system in bypass prior to fol-
lowing the startup procedure and flush the plumbing for at least
10 minutes.
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Cautions!
• Do not let the system freeze. Damage to the tank may result.
• System must be operated in a vertical position. Do not lay
it down during operation. The system may be placed in any
position for shipping and installation but must be operated in
the vertical position.
• Place the system on a smooth, level surface. Because the
system operates in an UP-Flow, fluidized bed mode, having a
level surface is more important than with a softener or media
filter.
• A bypass valve should be installed on every system to facilitate
installation and service.
• Observe all local plumbing and building codes when installing
the system.
Notes to the Installer
The OneFlow ® system differs from a conventional softener or
media filter in a number of key respects.
• The system is light and only partially filled with media. This is
normal. The UP-flow operation of the system requires a lot of
freeboard to allow the bed to fully fluidize.
• The system has no underbed so you can tip the system over
without any fear of upsetting the media. This makes transpor-
tation and installation much easier than conventional systems.
• Because the OneFlow ® system operates in the UP-flow mode,
the tank connections are opposite of traditional installations.
• Please see the “Important note about iron, manganese and
copper in the water supply” above.
• Please see the note about “Using OneFlow ® with other water
treatment equipment” on the previous page.
Important note about iron, manganese and copper
in the water supply