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GroundWork Backpack Pump Sprayer, 4 gal.

SKU # 105900099
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Item Information

Makes Lawn Maintenance Easy

The GroundWork Backpack Pump Sprayer is a 4-gallon sprayer that safely houses and sprays chemicals used for treating lawns.

Enhanced Control

With a comfort-grip fiberglass wand, the GroundWork Backpack Pump Sprayer offers you more control. This convenient wand contains a trigger lock that allows for continuous spray, and a nozzle that adjusts between mist and stream.

Better Mobility

The GroundWork Backpack Pump Sprayer is designed with mobility in mind. Light in weight, this durable sprayer conveniently straps to your shoulders like a school bag making portability easy.

Safe and Chemical Resistance

The GroundWork Backpack Pump Sprayer is made of polyethylene which is resistant to most chemicals. It also has a funnel top that makes filling easy and safe.


  • Chemical resistant pump sprayer
  • 4-gallon capacity
  • Trigger lock for continuous spray
  • Padded backpack panel with cooling air channels
  • Convenient dual pump fitting for left- or right-handed use
  • Fiberglass wand for enhanced durability
  • Carrying handle and separate adjustable shoulder strap for enhanced mobility
  • No-spill funnel top
  • Stream and mist setting

Specification Description
Nozzles Included: 1
Product Height: 23-1/2 in.
Product Length: 16-1/2 in.
Product Material: Plastic
Product Width: 11 in.
Spray Wand: Yes
Tank Material: Polyethylene
Warranty: Lifetime Limited Warranty
Brand: GroundWork
Capacity: 4 gal.
Product Type: Backpack Sprayers
Manufacturer Part Number LFSX-16N
GroundWork Backpack Pump Sprayer, 4 gal. is rated 1.5 out of 5 by 107.
Rated 1 out of 5 by from Cheap plastic parts I love the design and the pump is one of the most comfortable I've ever carried. However the workhorse connector between the pump lever and the pump is made of cheap plastic that breaks easily rendernig the pump worthless. I have not found anyplace that sells replacement parts. I recomend you get a different pump.
Date published: 2018-08-07
Rated 1 out of 5 by from Designed to break! The pump lever control section is made of plastic and will break no matter how careful you are, it is just not designed to last a long time frame.
Date published: 2018-08-06
Rated 1 out of 5 by from Love the idea and design, but Great idea in design but the product is poorly made and there is no customer service backup at the O-ring on the piston in the pump went bad I keep calling the company they sent me an O-ring packet at all kinds of o rings none of them fit the Piston of the pump I can't seem to get anybody over there who understands that all I need is the old way they said I would have to send it back anyway I would never buy this thing again
Date published: 2018-08-05
Rated 1 out of 5 by from Ground work Backpack pump sprayer I bought two of them for my yard .....thinking it was good product !!!!! Surprise surprise don’t waste your money on these pieces of junk ...poor quality!!!!!!!!!!
Date published: 2018-07-30
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How high will this machine spray? This is a customer question

Asked by: CindyCR
When switched to the jet setting and then giving the max pressure, the machine can spray 10ft. high.The substance will travel approximately 18 feet.
Answered by: Tbeacher
Date published: 2018-03-19

CAn you now buy replacemenrt parts for the. Sprayer

Asked by: Bernard c
Replacement parts can be ordered from Tractor Supply Co parts (888) 376-9601.
Answered by: Astroer
Date published: 2017-05-23

There are nowhere in the instructions about where to install the accessories. Can you please tell me what the accessories are for?

Asked by: MarcieK
We included extra O rings and a few nozzles.
Answered by: Valery
Date published: 2017-08-03

How to get pressure in the tank

Asked by: margene
To pressurize the pump, pump the handle quickly, when you feel resistance you now the chamber is filling with fluid. Pump the sprayer as needed 5-6 times.
Answered by: ErlindaC
Date published: 2018-07-10

Can I purchase the hose between the spray nozzle and tank for a pump sprayer 4 gallon?

Asked by: Ron K
Please call customer service at 888-376-9601.
Answered by: Valery
Date published: 2017-05-23

groundworks bp sprayer Model LFSX 10/12 maded a popping noise while pumping, replaced oring now piston goes up and down but doesn't pressurize

Asked by: Bunn
Please call customer service at 888-376-9601.
Answered by: Valery
Date published: 2017-09-08

i bought a sprayer it leaks. what does the warrenty cover?

Asked by: seldomseen
The limited warranty covers the unit for one year but does not apply to damage resulting from accidents, misuse, neglect, alterations, operations not in accordance with instructions, commercial use, or normal wear and tear of O-rings and seals. For troubleshooting leaks and other operational issues call Tractor Supply Co Parts (888)-376-9601.
Answered by: Astroer
Date published: 2016-08-03

How do I release the pressure when done spraying

Asked by: MikeT7
The pressure can be released out by pressing the trigger on the handle.
Answered by: Valery
Date published: 2017-04-27
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