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WL250
Operating,
Installation,
and
Service
Manual
Page
60
‐
Revision:
4
‐
25
‐
2016
HOT
TANK
DESCALING
INSTRUCTIONS
The
hot
tank
requires
removal
of
mineral
deposits
(descaling)
on
a
regular
basis.
Typically
descaling
should
take
place
every
6
to
12
months
to
preserve
the
long
‐
term
health
of
your
unit.
Use
non
‐
toxic
cleaner
such
as
ScaleKleen,
DEZCAL,
20%
Citric
Acid
Solution,
or
Undiluted
Vinegar
Solution
to
remove
mineral
deposits
as
directed
by
the
manufacturer
depending
upon
filtration
and
local
water
conditions.
Descaling
is
an
important
process
that
removes
calcium
deposits,
or
scale,
that
can
build
up
inside
a
tank
over
time.
Calcium
and
scale
is
non
‐
toxic
but
left
unattended
will
hinder
your
unit’s
performance.
WARNING!
PERSONAL
PROTECTIVE
EQUIPMENT
REQUIRED.
Always
ensure
proper
ventilation
and
use
rubber
or
nitrile
gloves
and
eye
protection
when
using
chemicals.
Refer
to
Material
Safety
Data
Sheet
for
specific
requirements
of
each
product.
CAUTION!
STAINLESS
STEEL
TANK
DESCALING
.
The
hot
tank
is
made
from
stainless
steel.
Ensure
descaling
solution
is
compatible
with
stainless
and
always
flush
the
unit
completely.
Dispose
in
an
environmentally
safe
manner.
Materials
Needed:
Personal
Protective
Equipment.
Rubber
or
Nitrile
Safety
Gloves
and
Protective
Eyewear
Phillips
Screwdriver
Temperature
Gauge
Water
Pitcher
or
Container
to
collect
water
from
the
faucet
5
‐
gallon
container
or
drain
basin
Citric
Acid
Based
Cleaner
¼”
Plastic
Tubing,
at
least
4
feet
in
length,
and
assorted
¼”
quick
connect
fittings
Sanitizing
Cartridge
–
an
empty
Waterlogic
Filter
with
cartridge
removed
Food
Coloring
1.
Bypass
filters
before
starting
the
Descaling
Procedure.
2.
Put
descaler
per
directions
and
3
drops
of
food
coloring
into
the
descaling
cartridge.
3.
Connect
descaling
cartridge
to
the
inlet
water
supply
and
connect
to
inlet
bulkhead
fitting
on
the
back
of
the
unit.
Turn
on
Water
Supply.
4.
Select
Hot
Water
and
depress
the
Main
Dispensing
Button
on
the
Front
Control
Panel
until
descaling
solution
(colored
water)
comes
out
of
the
faucet.
Container
and
drain
basic
will
be
required
to
catch
water
from
the
faucet.
5.
Turn
off
water
supply
and
remove
sanitizing
cartridge
from
inlet
water
supply.
Reconnect
water
supply
to
inlet
fitting.