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Sprayer Depot Blog

Top Sprayer Depot Posts of 2014

Posted by Sprayer Depot on Tue, Jan 27, 2015

TopPosts2014We have a lot of fun at Sprayer Depot creating this blog, uncovering resources or industry news. We're always seeking out information that matters to folks from each of the industry segments we speak to on a regular basis. From the latest smartphone application to tips and tricks to utilize your spray equipment better, we try to cover it all throughout the year right here in this blog.

In case you missed them, here are the five posts that got the most views in 2014.

1.  6 Popular Apps for Tree Care Professionals

In June we reviewed six popular apps for tree care professionals. Like professional landscapers and horticulturists, professional arborists spend a lot of time working “in the field”.  The use of smartphones and tablets have helped make the workday more productive for these professionals by making every day tasks such as invoicing, project management and even research, easy to complete in a non-office work environment.

2. Plumbing Your Sprayer the Right Way

Then, in July, we dove into the inner workings of plumbing your sprayer the right way. The primary goal when you’re plumbing a sprayer pump is to route liquid from the pump to the spray nozzle with as little restriction as possible. By minimizing restrictions you’ll achieve the pump’s maximum rated capacity.

3.  4 Features of the New Sprayer Calibration App

We featured another smartphone application in September with the debut of a new sprayer calibration calculator app designed to assist spray applicators with calibrating a pesticide sprayer. The app was developed by the University of Illinois Extension and is available free to those with Apple and Android phones.

4.  How To Build the Perfect Custom Sprayer

When we say we know sprayers, it’s true. Our team builds more than 500 custom sprayers each year for customers looking to modify or completely reconfigure the makeup of this important equipment. After all, you don’t have to settle for less than perfect in the sprayer world. Just turn to our Sprayer Depot knowledgeable customer service technicians with your ideas and < bam > the perfect custom sprayer is born. Also in September we shed light on some of the common modifications to a few of our best selling sprayer models from Kings Sprayers.

5.  Introducing The Kings QuickShip Sprayers

Back in May we featured the Kings Sprayers QuickshipTM Program. We've made it easier than ever to get the high-quality commercial sprayer you want - without the wait! So we chose some of our most popular Kings Sprayers models and made them available for same day shipping*.  Sprayers in this program that are ordered by 12:00 p.m. (EST) will ship same day.


We’re grateful that you’ve chosen to read what we write and hope you find this blog to be a useful resource. Thanks for your time in 2014. We hope to see you here more often this year!

Topics: Custom-build a sprayer, Sprayer Depot, custom built sprayers, custom build sprayer, plumbing sprayer, Kings Sprayers, Quickship Sprayers, Apps for Arborists, Tree Care Apps, Apps on the Sprayer Depot blog, Spray apps, apps for spraying agriculture, Sprayer Calibration, top posts

Plumbing Your Sprayer the Right Way

Posted by Sprayer Depot on Thu, Jul 31, 2014

The primary goal when you’re plumbing a sprayer pump is to route liquid from the pump to the spray nozzle with as little restriction as possible. By minimizing restrictions you’ll achieve the pump’s maximum rated capacity. For purposes of this blog post we’ll share how to plumb your sprayer the right way when using a diaphragm pump.

Quick side note, as you probably know the type of pump you use makes a difference when it comes to proper plumbing. Diaphragm, piston and roller pumps are all types of positive displacement pumps, whereas a centrifugal pump is the most common non-positive displacement pump. When you’re looking at positive displacement pumps the output is proportional to speed and independent of pressure, but when we use a centrifugal or non-positive displacement pump the output is influenced by pressure. So needless to say, plumbing on these two types is different.

Now that we’re all on the same page, for the best performance of your sprayer with a diaphragm pump and hose reel, follow these 10 steps and you’ll be well on your way to maximizing pump performance and efficiency:

Hypro diaphragm pump diagram

  1. Place the outlet fitting in lowest point in the tank.
  2. Connect a ball valve to the outlet tee (or elbow) so you can turn off the flow in case you need to service the pump or check the line strainer.
  3. Include a line strainer between the tank and the pump to prevent debris from clogging the pump, relief valve, gun and nozzle.
  4. Tank outlet fitting, elbow, suction line, and strainer should be one pipe size larger than the suction port of the pump. Suction line should be reinforced, so it does not collapse, but flexible so it absorbs pulsation. Clear suction line helps you see air bubbles if there is air entering the system.
  5. Although diaphragm pumps prime well, try to position the pump lower than the tank for gravity feed.
  6. Most diaphragm pumps include a “control unit” consisting of a relief valve, multiple discharge ports with ball valves, and a pressure gauge. It can be mounted on the pump or remote mounted. If a remote mount is used do not put a shutoff valve between the pump and the control unit.
  7. Connect the relief valve bypass port with an unrestricted line to the top of the tank, venting to atmospheric pressure. Do not put a shutoff valve in this line. Do not connect the bypass line to the agitator. Restrictions may prevent the relief valve from bypassing properly and so causing damage to the pump.
  8. Connect one of the discharge lines to the agitator(s). You may use a ball valve in this line to throttle the flow.
  9. Connect one of the discharge lines to the inlet swivel on the hose reel. You may use a ball valve in this line. Do not use hard plumbing when connecting the discharge line to the hose reel swivel.
  10. Connect the gun.

Additional considerations:

  • A minimum number of elbows, fittings, and valves should be used to reduce pressure losses. These should also be sized properly to prevent flow restrictions.
  • Hoses should be the same size as the pump’s suction and discharge port. A straight run of 10 times the suction hose diameter is recommended prior to the pump inlet. For example: 1.5” hose diameter = 15” of straight hose.
  • An agitation flow rate of 5% of the tank capacity is recommended for most chemicals. A higher rate of 10% is suggested for wettable powders and materials difficult to keep in suspension. See the chart below for common tank sizes.
Tank Capacity 5% 10%
500 gallons 25 gpm 50 gpm
750 gallons 37 gpm 75 gpm
1000 gallons 50 gpm 100 gpm

Topics: Spray Equipment Maintenance, Diaphragm pumps, spray equipment, Sprayer Depot, Strainers, Sprayer Parts, diaphragm pump, Diapgragm pumps, sprayers, spray equipment checklist, sprayer performance, plumbing sprayer, plumbing diaphragm pump sprayer

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