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WL270
Manual
Page
15
–
Revision
2
‐
2
‐
2017
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
Food
Coloring
1.
Check
to
ensure
that
the
Red
Heater
and
Compressor
Power
Switch
is
the
O=OFF
position.
NOTE:
Switches
have
internal
LED
that
illuminates
when
placed
in
I=ON
position.
2.
Turn
off
the
water
supply
and
unplug
the
unit.
3.
Remove
top
Cover
4.
Remove
Reservoir
Lid
5.
Remove
Hot
Tank
Drain
cap
on
back
of
unit
and
allow
all
water
to
drain
from
unit.