CHAPIN 98004 ATV 40G Water Tank with 10ft Boom and 3-Point Hitch

The Chapin 98004 is a vehicle-mounted spraying setup built for managing large areas with an ATV or utility equipment. It solves the hassle of frequent refilling and slow coverage by pairing a large 40-gallon translucent poly tank with a broad 10-foot boom system.

Wide coverage is handled by the 7-nozzle boom, which includes a spring-loaded break-away design that eases storage when the job is done. Fluid is pushed by a 5 GPM diaphragm pump that quick-connects directly to a 12V battery using an included wiring harness with alligator clips. This pump design can run dry without risk, eliminating worries about replacing internal shafts or seals.

For targeted applications, the system includes a 20-inch poly spray wand connected to 180 inches of reinforced hose. The wand features a poly cushion-grip shut-off with a serviceable filter and a lock-on/off mechanism for steady use. Securing the unit is handled by an integrated 3-point hitch setup alongside ratchet straps equipped with locking S-clips, while the 6-inch tank opening simplifies pouring and mixing.

Because this system relies on a 12V electrical hookup and a 3-point hitch connection, it requires compatible equipment to mount and operate. It is dedicated to heavy-duty vehicle use, so those who need a portable, handheld unit for tiny garden patches will find the 40-gallon frame much larger than necessary.

Verdict: The Chapin 98004 is an ideal match for property managers and acreage owners who need a high-capacity, vehicle-mounted spray system. With its wide 10-foot boom, durable run-dry pump, and extended spot-spraying hose, it delivers thorough ground coverage with minimal downtime.

• Tank Capacity: 40 gallons
• Tank Opening: 6 inches
• Tank Material: Translucent poly
• Boom Width: 10 feet
• Nozzle Count: 7 nozzles
• Pump Type: 5 GPM diaphragm pump
• Power Connection: 12V battery wiring harness with alligator clips
• Wand Length: 20 inches
• Hose Length: 180 inches (reinforced)
• Mounting: 3-point hitch and ratchet straps with locking S-clips

A great fit if you:

• Maintain larger properties using an ATV or vehicle fitted with a 3-point hitch.
• Need wide 10-foot coverage across open fields alongside spot-spraying capability.
• Want a run-dry diaphragm pump powered directly from a 12V battery.
• Require a large 40-gallon chemical-resistant tank to minimize refills.

Consider something else if you:

• Do not have an ATV, tractor, or 12V battery setup available.
• Only need to treat small garden beds that a hand-carried sprayer can manage.

How does the pump receive power?
The 5 GPM diaphragm pump connects to a 12V battery using an included wiring harness equipped with alligator clips.

What happens if the pump runs dry?
The diaphragm pump is designed to safely run dry without needing replacement shafts or seals.

Can I use this sprayer for spot treatments?
Yes, the package includes a 20-inch poly spray wand paired with 180 inches of reinforced hose and a lock-on/off shut-off handle.

How wide is the spray boom?
The spring-loaded, break-away boom measures 10 feet wide and features 7 spray nozzles.