Flowzone STORM 2G User manual

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 1 -
STORM
Model #: FZVAQP
DRIPLESS™ SWAPTANK™
BACKPACK SPRAYER
2-GALLON TANK CAPACITY
®OPERATION GUIDE
2G
™

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 2 -
!ATTENTION Please read the following information carefully. User must read and understand the entire manual
before operating the sprayer. Failure to follow instructions or improper use could lead to sprayer failure
and possible serious injuries.
This product contains chemicals, including lead, known to the state of California
to cause birth defects and other reproductive harm.
When using chemicals, always wear protective clothing, including respiratory
protection masks, gloves, eye protection, etc.
Do not dispose of Lithium-ion batteries with household waste; recycle where
facilities exist.
NEVER spray petroleum oil
distillates, or acetone through
your sprayer. If using essential
oils, thoroughly clean the
sprayer after each use with
warm, soapy water.
• DO NOT RETURN SPRAYER TO
STORE. If you experience issues
or have questions, contact our
Support Team M-F 9am-5pm
EST at 1-803-339-2500 or email
[e-mail].
• Never spray ammable, caustic,
acidic, heat, pressure, or gas
producing chemicals.
• Always read and follow chemical
manufacturer’s instructions
before use with this sprayer as
some chemicals may be hazardous
when used with this sprayer.
• Never leave chemicals or solutions
sitting in your sprayer after using.
• After using sprayer with
chemicals, it is important to spray
with fresh water for 3-5 minutes to
ensure residual chemicals in the
gun, wand, tank, pump, and hose
are cleaned out.
• Read and follow all instructions
and cautions on label of products
used in this sprayer.
• Do not store your sprayer in
extremely high temperatures.
Heat can lead to the build-up
of pressure within the sprayer,
resulting in a possible explosion.
• Do not try to make modications to
the sprayer. Always use FlowZone®
branded replacement parts from
the manufacturer.
• Do not use batteries that are wet
or have been damaged.
• Inspect sprayer hose, power knob,
wand, and gun for damage or loose
connections before each use.
• Do not lift or carry the sprayer by
the hose, or wand. Carry by the
handle only.
• Only spray when the air is calm (no
wind or air movement) to prevent
chemical spray from drifting into
unintended areas.
• Keep sprayer and all chemicals out
of the reach of children.
• Remove chemicals and thoroughly
clean the sprayer after each
use. Failure to clean the sprayer
may cause contamination of
subsequent applications, will
cause premature spray ware,
and void the sprayer warranty.
NOTES
• The sprayer may have residual
water in it when rst opened.
This is due to quality testing every
sprayer undergoes before leaving
our factory.
• Some parts may be located under
the tank lid when rst assembling
the sprayer.
• THIS SPRAYER IS DESIGNED TO
OPERATE WITH ONLY FLOWZONE®
BRANDED BATTERIES AND
ADAPTERS. ANY OTHER
BATTERIES COULD CAUSE
SERIOUS HARM OR INJURY TO
THE OPERATOR AND SERIOUS
DAMAGE TO THE SPRAYER.

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 3 -
DO NOT RETURN SPRAYER TO STORE, if you experience problems or have
questions contact our Customer Support, M-F 9am-5pm EST at
+1 803.339.2500, or email: [e-mail], or nd more information
at fzspray.com/troubleshoot.
OPERATING
• Do not allow familiarity with
products to make you careless.
Remember that a single moment
of carelessness is sucient to
cause serious injury.
• Always wear eye protection with
side shields when handling or
operating this sprayer. Failure
to do so could result in serious
injury from chemical contact or
ying dirt or debris.
• The Lithium-ion battery pack can
be used in temperatures down
to 32ºF. When operating in cold
temperatures, put the battery
pack in the battery compartment
and use the sprayer in a light duty
application. After about a minute
the battery pack will warm up and
begin operating normally.
• Always use the correct power
setting for your application.
Using the correct PSI and ow
rate will result in a safer and
more thorough treatment. For
calibration resources please
contact FlowZone® technical
support. (Note: Always refer to
local, state, and federal laws
and regulations regarding your
application.)
• Do not use the sprayer if the
power switch is not functioning
correctly. Any power tool that
cannot be controlled with the
switch is dangerous and must be
repaired.
• Remove battery before making
any adjustments, changing
accessories, or storing the
sprayer. Disconnect the sprayer
from the power source by
removing the battery pack.
These preventative safety
measures reduce the risk of
starting the sprayer accidentally.
STORING
• Store sprayer out of reach of
children and do not allow persons
unfamiliar with the power tool
or these instructions to operate
the sprayer. Power tools are
dangerous in the hands of
untrained users.
• Maintain sprayers and
accessories. Check for
misalignment or binding of
moving parts, breakage of parts
and any other condition that may
affect the sprayers operation.
SAFETY
• Use the sprayer and accessories
in accordance with these
instructions, taking into
consideration the working
conditions and the work to be
performed. Use of this sprayer
for applications that it was not
intended for could result in a
hazardous situation.
• Keep handles and lift points
dry, clean and free from oil and
grease. Slippery handles and
lift points do not allow for safe
handling and control of the
sprayer.
• Risk of re or explosion: Never
use this sprayer with liquids such
as gasoline, ethanol, methanol,
or any other ammable or gas
producing chemicals. Do not use
sprayer around sparks, ame, or
smoke. Failure to adhere to these
instructions may cause ignition,
resulting in potential injury and
damage to property.
• To reduce the risk of re,
personal injury, and product
damage from a short circuit,
never immerse the sprayer,
battery, or charger in uids. Do
not place or store sprayer where
it could fall or be pulled into a tub
or sink. Corrosive or conductive
uids, such as seawater, certain
industrial chemicals, and bleach
or bleach containing products,
etc., can cause a short circuit.
• Electric shock hazard: Never
spray toward electrical outlets.
• Spray area must be well ventilated
to avoid hazardous fume build-
up. Always refer to the product
label of the chemical being used
for safety instructions and proper
use practices.
• Avoid spraying on windy days.
Spraying in windy conditions
could cause chemicals to be
blown onto persons, plants, or
objects that are not intended to
be sprayed.

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 4 -
REGISTER YOUR SPRAYER!
To take advantage of the 1-year Limited Warranty
from WESSOL, LLC. Register your sprayer at the
website below:
fzspray.com/pages/register
Please read and follow this manual carefully to ensure
that you get the most out of your new sprayer. If
you need assistance with the assembly or operation
of your sprayer, please don’t hesitate to contact
WESSOL via the support methods below:
fzspray.com
[e-mail]
SAFETY CONT.
• Do not store chemicals in the
tank. Chemicals can degrade
seals and hoses. Drain and
clean sprayer after each use.
Failure to do so may void the
sprayer warranty.
• Remove gloves before handling
battery pack. Chemicals may
be damaging to plastics.
• Thoroughly inspect the
interior, exterior, and all
components of the sprayer
before each use. Check for
cracked and deteriorated
hoses, leaks, clogged nozzles
and missing or damaged parts.
If damaged, ensure the sprayer
is repaired before use. Many
accidents are caused by poor
maintenance.
• Always remove the battery
pack from the sprayer before
performing any maintenance,
storing or draining of the
sprayer.
• Do not eat or smoke while
handling or operating the
sprayer. Refer to the product
label of the chemical being
used for user safety practices.
• Do not use the battery
compartment for storage.
• Always use common sense
and be cautious when
using the sprayer. It is not
possible to anticipate every
situation that could result in a
dangerous outcome. Do not
use this sprayer if you do not
understand these operating
instructions or if you feel the
work is beyond your capability.
• Maintain labels and
nameplates. These carry
important information. If
unreadable or missing, contact
FlowZone® Support.
Manuals are subject to updates.
Scan the QR code to view the
most updated manual online!
or visit: www.fzspray.com/pages/
operation-guides

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 5 -
!THE BATTERY
These batteries have been designed
to provide maximum trouble-free life.
However, like all batteries, they will
eventually wear out. Do not disassemble
battery pack and attempt to replace the
batteries. Handling of these batteries
especially when wearing rings or jewelry
could result in serious burns.
• Recharge only with the charger
specied by FlowZone®. A charger
that is suitable for one type of
battery pack may create a risk of re
when used with another batter pack.
• Only use sprayers specically
designated with their designated
battery packs. Use of any other
battery packs may create a risk of
injury and re.
• When battery pack is not in use, keep
it away from other metal objects,
like paper clips, coins, keys, nails,
screws or other small metal objects,
that can make a connection from
one terminal to another. Shorting
the battery terminals together may
cause burns or res.
• Under abusive conditions, liquid can
be ejected from the battery; avoid
contact. If contact accidentally
occurs, ush with water. If liquid
contacts eyes, additionally seek
medical help.
• Liquid ejected from the battery may
cause irritation or burns.
• Do not use a battery pack or sprayer
that is damaged or modied.
Damaged or modied batteries
may exhibit unpredictable behavior
resulting in re, explosion or risk of
injury.
• Do not expose a battery pack
or sprayer to re or excessive
temperature. Exposure to re or
temperature above 265˚F (130˚C)
may cause explosion.
• Follow all charging instructions
and do not charge the battery
pack outside the temperature
range specied in the instructions.
Charging improperly or at a
temperature outside the specied
range may damage the battery and
increase the risk of re.
STORING BATTERY PACK
LONGER THAN 30 DAYS
• Store the battery pack where the
temperature is below 80˚F and
away from moisture.
• For long-term storage, regular
charging of the battery is required
to maximize battery life. Check the
battery level using the indicator
lights every 4 weeks. Recharge the
battery if it falls below 3 bars.
• Do not allow the battery to fully
discharge.
BATTERY RECYCLING
PREPARATION
• To preserve natural resources,
please recycle or dispose of the
batteries properly.
• This product contains Lithium-ion
batteries. Local, state or federal
laws may prohibit disposal of
lithium-ion batteries in ordinary
trash. Consult your local waste
authority for information regarding
available recycling and/or
disposal options.
LITHIUM-ION BATTERY
PACKS
• Lithium-ion batteries deliver
fade free power for their entire
run time. Lithium-ion batteries
will not gradually lose power due
to decreasing battery charge.
Instead, power from the battery
pack will drop from full to zero
once the full charge has been
drained from the battery. Once this
happens, recharging of the battery
is required.
BATTERY PACK
PROTECTION FEATURES
• Lithium-ion battery packs are
designed with features that protect
the lithium-ion cells and maximize
battery life. If the sprayer stops
during use, release the trigger to
reset and resume operation. If
the sprayer still doesn’t work, the
battery needs to be recharged.
If after 2 hours during the charging
process, none of the LEDs are lit,
remove the battery pack from the
charger to avoid damaging the
product. DO NOT insert another
battery. Contact Customer Support
for instructions on replacing
the battery.

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 6 -
CONTENTS:
ABOUT
07 Specifications
08 What’s Inside
09 Parts Diagram
SET UP
10 Sprayer Assembly
17 How to Spray
19 Aftercare
TROUBLESHOOT
20 Common Solutions
22 Parts & Accessories
25 Warranty

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 7 -
WHAT ARE THE CAPABILITIES
OF YOUR SPRAYER?
The all-new FlowZone® Storm™ 2-Gallon sprayer takes precision,
battery-powered indoor and outdoor spraying to a new level!
The all-new backpack Storm™ 2-Gallon battery sprayer allows for both high and
low output capability. Applicators can spray anywhere between 0.05 to 1.1 gallons
per minute with any nozzle tip. Ideal for any high-output spray application as well
as spot / precision spray jobs.
FlowZone® STORM 2G™ Specications
Model Number FZVAQP Pump Type Heavy-duty
Recirculating Pump
Battery Type Lithium-ion Spray Time Up to 3 hours
Battery Voltage 18V Pressure Up to 115 psi
Battery Capacity 5.2Ah Spray Distance >30 feet
Battery Charging Time 2 hours Tank Capacity 2 gallon
Battery Cycle Life 1,000 cycles Flow Rate 0.42-1.12 gal/min
Battery Charger 21V/2.5Ah Pump Life 750 hours
INSECTICIDEFUNGICIDE DEICER
FERTILIZERWATER HERBICIDE
SEALANTSCLEANER PLUS SO
MUCH MORE

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 8 -
Part Name Part Name Part
1 Tank Lid 7 18V/5.2Ah Battery Pack 13 0° Pin Stream Nozzle
2 2-Gallon Tank 8 21V/2.5A Battery Charger 14 45° Fan Nozzle
3 Tank Strainer 9 Stainless Steel Wand w/ 45° Bend
4Base Assembly 10 Dripless™ Gun & Hose Assembly
5Top & Bottom Holster 11 ComfortStraps™ Backpack Straps
6 Nuts & Bolts 12 Adjustable Cone Nozzle
7
8
12
9
13
WHAT’S
INSIDE
For part numbers
and replacement
parts please see
page 22.
14
3
6
10 11
1
2
5
4

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 9 -
SPRAYER DIAGRAM
& Replacement Parts
5-3
1-2
1
1-3
1-4
1-5
1-6
2
2-2
2-3
2-4
3
3
4
4-24-2
4-3
5
5-2
16
18
18-2
18-3
17
10-3
10
10-2
9-2
9
7
8
11 12
13
14
14-2
15
6
1
1-2
1
FZAARQ
2-Gallon Tank
1-2 Female Strap Buckle x2
1-3 Lid with Wand Holder
1-4 One Way Seal
1-5 Tank Lid Gasket
1-6 Tank Strainer
2
FZRARU
Upper Base
2-2 Switch
2-3 Variable Pressure Dial
2-4 Battery Holster
3 SwapTank™ Latch Kit
4 Front Cover
4-2 Battery Compartment Sealing Gasket
4-3 Pigtail Electrical Connector
5 Battery Door
5-2 Door Pivot
5-3 Door Pivot Clamp
6 Battery Pack
7Recirculating Pump
8 Circuit Board
9 Water Suction Port
9-2 O-Ring
10 Inlet Tube
10-2 Spring
10-3 Spring
11 Hose Quick Connect Adapter
12 Pump Outlet Connector
13 Nut Adapter
14 Male Tank Connector
14-2 O-Ring
15 Lower Base
16 Top Holster
17 Bottom Holster
18 Inline Gun
18-2 Hose
18-3 Steel Cable
FZRAQX-V4
Base Assembly
2-5
FZRARV
FZRASA
FZRARX
FZAAEM
FZRARZ
FZRANL
FZRANK
FZRABW
Tank Assembly
FZRASJ SwapTank™ Viton Gasket
Dripless Wand with 45° Bend18-4
Wand Assembly
FZAAQN
Holster Kit
Assemblies /
Kits
Replacement
Part
Available for Purchase
2-5
FZRASH
FZRASK
18-4
FZRACK

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 10 -
GETTING
STARTED
Setting up your
sprayer
NOTE: The sprayer may
have residual water in it
when rst opened. This is
due to quality testing every
sprayer undergoes before.
leaving our factory.
Locate wand holsters, nuts,
and bolts (inside tank lid or
battery compartment).
Slide the top wand holster
onto the extrusion channel
on the right side of the tank.
Insert the shorter bolt
through the front opening
on the holster, and place
the nut in the hexagonal
opening on the backside of
the wand holster.
Use a Phillips-head
screwdriver to tighten
the bolt into the nut.
12
3 4

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 11 -
Slide the bottom wand
holster onto the extrusion
channel on the right side of
the tank base.
Insert the longer bolt
through the front opening
on the holster, and place
the nut in the hexagonal
opening on the backside
of the wand holster. (tip:
turn sprayer on it’s side for
easier assembly)
56
ToconnectComfortStraps™
backpack straps, connect
each bottom strap clip.
Attach both shoulder strap
male buckles to the female
buckles on the SwapTank™.
7 8

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 12 -
Adjust shoulder straps to a
comfortable position.
Identify the 2-prong male
electrical connector at the
end of the hose / gun / wand
assembly and align it to the
female pigtail connector on
the sprayer base.
Insert the 2-prong male
electrical connector and
tighten the cap onto the
female pigtail connector.
Pull down on the female
brass quick-connect hose
collar.
9 10 11 12

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 13 -
Insert the female brass
quick-connect hose collar
onto the plastic male quick-
connect on the sprayer
base and release the collar.
Store the hose / gun / wand
assembly in the side wand
holsters or the lid wand
holster.
13 14
15 Charge battery to full, open
battery door, insert the
battery into battery holster.
Test sprayer by turning the
variable pressure knob to 1
- 5 position and squeezing
the spray trigger.
16 17

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 14 -
Locate the trigger storage
locking pin on the backside
of the spray trigger.
Open the locking pin fully
to prevent the trigger from
being pulled. This is the
ideal storage position.
To lock the spray handle
into a continuous spraying
position, start by squeezing
the spray trigger handle
into the spray position.
While holding down the spray
trigger handle, pull the lock-
ing tab towards the spray
trigger handle. This will hold
the trigger handle in the
spraying position. Push the
locking tab back upwards to
control the trigger handle
again.
Inline Spray Handle Operation
12 3 4
5

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 15 -
To remove the SwapTank™
assembly, begin by
unclipping the shoulder
strap from the tank. Pull
upwards on each latch
assembly. Guide the metal
bar away from the tank
indentation.
Once both latches are
released, pull the tank
upwards from the base.
Rell original tank or
use secondary pre-lled
SwapTank™ and place it
into the base assembly.
SwapTank™ Operation
12 3 4
Guide the metal bars to the
indentation in the tank.
Pull each latch assembly
downwards to lock the
SwapTank™ into place.

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 16 -
Storm™ 2-Gallon Flow Rate & Pressure Chart
Note: Actual spraying pressure and ow rates may vary. It is always a good idea to calibrate your sprayer prior to use.

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 17 -
SPRAYING
Preparing to spray
When using chemicals, always wear protective clothing, including respiratory
protection masks, gloves, eye protection, etc.
Although the battery (7) may be
partially charged upon delivery,
it is essential to fully charge
the battery prior to the rst
operation. A green indicator
light should ash while
the battery is plugged in
and charging. Once charged, all
5 lights will remain constantly
illuminated.
The charge level can be viewed
by activating the indicator lights
on the battery by pressing on the
battery icon.
In a separate container,
prepare the solution
you wish to spray
according to the
chemical manufacturer’s
instructions. Remove the
tank lid and carefully pour
the solution through the
tank strainer. Securely
tighten the tank lid.
1
22
1 2

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 18 -
Determine the nozzle you
would like to use and insert
it into the spray gun or spray
wand by pulling back on
the quick-connect tting.
Once the nozzle is in place,
push the collar back to its
original position. General
ow rates for each nozzle
can be found on page 16.
Turn the pump on by
rotating the variable-
pressure dial clockwise
to the desired position.
Reference ow rate and
spraying pressure chart on
page 16.
To begin spraying, simply
hold down the trigger on the
spray gun.
Priming your sprayer
NOTE: Although rare, when spraying for the rst time or after storing
the sprayer for an extended amount of time, the sprayer may need help
priming. If the sprayer turns on and you can hear the pump running, but
no liquid is passing through the sprayer, you will need to manually prime
the sprayer according to the steps below:
1. With the sprayer off, remove the battery and make
sure the battery cover is shut.
2. Remove the tank lid and take the tank strainer out to
reveal the inside of your sprayer tank.
3. Locate the inlet lter at the bottom of the sprayer
tank. Gently wiggle the white circular part of the inlet
lter until it comes apart from the black inlet lter
stem. Set aside.
4. Using a garden hose or similar delivery method,
rapidly run clean water into the connection where the
inlet lter was.
5. Reinstall the inlet lter with the mesh screen facing
the bottom of the tank, ll the sprayer with some
water, and insert a charged battery. Test the sprayer
by activating the spray trigger.
Scan for video instructions or visit
https://fzspray.com/pages/
troubleshoot#priming-sprayer
34
5

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 19 -
Cleaning the inlet lter
NOTE: It is recommended you clean your inlet lter at least every other
time your sprayer is used. Buildup at the inlet lter can cause damage to
the pump and reduce spraying pressure.
1. With the sprayer off and battery removed, take off the
tank lid.
2. Lift the tank strainer out of the mouth of the sprayer
tank and set aside.
3. Reach into the sprayer tank and gently pry the inlet
lter from the pump connection at the bottom of the
tank.
4. Rinse the inlet lter with fresh water and get rid of any
debris or particles.
5. Taking a clean cloth, wipe down the lter screen and
dry the inlet lter. Reassemble the sprayer with the
inlet lter and store the unit in protected area.
For long-term storage, regular charging of the battery is required to
maximize battery life. Check the battery level using the indicator lights
every 4 weeks. Recharge the battery if it falls below 3 bars.
Do not allow the battery to fully discharge.
NOTE
AFTERCARE
Sprayer maintenance
CAUTION: Failure to properly rinse out the sprayer may
cause chemical residue build-up that can clog or damage
internal and external components. Leaving chemical
liquids in the sprayer when not in use can lead to premature
wear and voiding of the warranty. Never store the sprayer
with chemical inside.
1. With the sprayer off, dispose of extra
product based on the manufacturer’s
instructions. Rinse out any residual
solution in the spray tank with warm soapy
water. Then, spray fresh water through the
sprayer for 3-5 minutes to clear the sprayer
of chemicals.
2. Disconnect the spray gun from the hose
and allow the hose to hang down towards
the ground; draining the hose of liquid.
3. Throughly dry the sprayer tank and clear
the nozzles and inlet lter of any build-up.
4. Store the sprayer in a dry, clean, and
shaded place to protect it from extreme
heat or frost.

STORM 2G OPERATION GUIDE
FZVAQP
© WESSOL, LLC 2024
- 20 -
TROUBLESHOOTING
If your sprayer is not turning on, visit fzspray.com/troubleshoot for detailed instructions on how to determine which part is
not functioning as it should.
To contact Technical Support, email [e-mail] or call [phone].
Problem Possible Cause(s) Solution
Sprayer does not turn on.
Dead battery Charge the battery. If the battery will not charge, test the charger or
contact Support for a replacement if applicable.
Defective or damaged part Follow the instructions at fzspray.com/troubleshoot or contact Support
for guidance.
Leaks from tank. Loose hose connection Disconnect and reattach the hose from the base of the sprayer, if
problem persists, please contact Support for a replacement base, if
applicable.
Leaks from gun/nozzle. Missing or worn gasket Locate the necessary part from page 9 and contact Support or visit
fzspray.com to purchase.
Clogged pump / hose / gun /
wand / nozzle
Not rinsing parts with water
after use.
Take apart and thoroughly clean the parts. Rinse the sprayer with warm,
soapy water after each use. Clean the pump inlet lter inside tank.