Frequently Asked Questions

You’ve got questions. We’ve got answers.

What are some items to consider when choosing the best spray unit for my business?

Size – Tank size should be based on the number of gallons of product you’ll carry per day.
Spray Rate – Know the manufacturer’s recommended rate of spray for the chemicals you’ll be using.
Pump Type – Piston or diaphragm? The choice is often based on application and customer preference.
Agitation Needs – Mechanical agitation works best for powdered products, and jet agitation for liquid products.

What is the difference between jet agitation and mechanical agitation?

Mechanical agitation uses paddles attached to a rotating belt-driven shaft to stir the liquid. Jet agitation stirs the contents of the tank with pressure from the pump.

How long does it take to build a spray rig?

The timeframe is roughly a couple of weeks to a couple of months. That may seem broad, but there are a lot of factors involved. In terms of man-hours, the range is roughly 40 to 48.

Does Graham provide financing and delivery of spray units?

We offer special financing on trucks equipped with our spray units, as well as delivery throughout the continental United States.

What is Graham’s warranty?

Graham Spray Equipment warrants new equipment of its own manufacture for 12 months against defective workmanship and materials under normal use and service, but not against damage of any kind resulting from erosive or corrosive liquids handled by the equipment, from improper installation or maintenance, or from misuse, negligence, alteration or accidents. For more information, visit https://grahamse.com/our-products/.

How long do Graham spray rigs last?

Graham spray units can stay in the field for up to 30 years with proper maintenance.

What post-purchase care does Graham provide?

We will teach you how to use and maintain the products you purchase.
Our lawn spray equipment comes with lifetime phone support.
We sell over 1,800 parts to service our turf spray equipment and can usually talk you through a repair over the phone.

What does “lifetime phone support” mean?

It means we’ll be available to answer any questions you have about our spray equipment as long as it’s in service and we’re in business.

What can I do to keep my rig at peak performance during the busy season?

Mechanical Agitators – Grease the packing bearings.
Hose Reel Swivels – Check for leakage at swivel joints that indicates the swivel needs to be greased.
Regulator T-Handles – Turn them in and out once or twice a week to prevent sticking.
Pump Screens – Clean screens daily for maximum efficiency.
Hoses and Belts – Look them over for signs of excessive wear and tear, dry rot and cracks or leaks.
Loose Belts – Adjust the idler tension so that there’s a half-inch of spring in the belt.

What can I do to maintain my rig during the off-season?

Remove strainer caps and screens.
Open ball valves on suction lines.
Remove nozzles from spray guns and fix triggers in the open position.
Remove the regulator plug or open the drain valve.
Open all tank valves, including the drop valve.
Open all valves on reels.
Turn the pump over until all liquid is drained.

Does Graham provide winterizing services?

We do. Alternatively, we’ve provided a “How to Winterize Your Unit” guide on our Videos page so you can do it yourself.

What is our parts return policy?

1. Eligibility for Returns:

Parts must be returned within 30 days of the original purchase date.
Only parts in their original, unopened packaging are eligible for return.
Custom or special-order parts are not eligible for return unless they are defective or damaged upon receipt.

2. Return Authorization:

All returns must be authorized by our warehouse team. Please contact our customer service department to obtain a Return Merchandise Authorization (RMA) number.
The RMA number must be clearly marked on the outside of the return package.

3. Condition of Returned Parts:

Returned parts must be in new, unused condition and include all original packaging, labels, and documentation.
Parts that have been installed, used, or altered in any way are not eligible for return.

4. Return Shipping:

Customers are responsible for the cost of return shipping unless the return is due to an error on our part (e.g., incorrect or defective part).
We recommend using a trackable shipping method to ensure the safe return of parts.

5. Inspection and Restocking Fee:

All returned parts will be inspected upon receipt. If the parts do not meet the return criteria, they will be returned to the customer at the customer’s expense.
A restocking fee of 15% may apply to all returned parts, unless the return is due to an error on our part.
Discretionary Restocking Fee: In certain cases, a discretionary restocking fee may be applied based on the condition of the returned parts and the circumstances of the return. This fee, which can be higher than 15%, will be determined at the discretion of our warehouse team.

6. Refunds:

Refunds will be issued to the original payment method within 10 business days of receiving and inspecting the returned parts.
Shipping and handling charges are non-refundable.

7. Damaged or Defective Parts:

If you receive a damaged or defective part, please contact our customer service department immediately. We will arrange for a replacement or refund at no additional cost to you.

8. Contact Information:

For return authorization and any questions regarding our return policy, please contact our customer service department at 770-942-1617 or will.adams@grahamse.com