Chapin Pro Series 4 Gallon Backpack (#61800)

$66.45

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5 out of 5 stars Rating: 4.8

39 Reviews | 11 Q&A

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Chapin Pro Series 4 Gallon Backpack (#61800) sprayer (4 gal)

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Chapin Pro Series 4 Gallon Backpack (#61800)
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The Chapin Professional 4 Gallon backpack sprayer is the pros choice for larger spray jobs. The sprayer features an over-sized filler cap that makes filling the tank easy with less spilling, large capacity 4 gallon tank, and carrying straps for fatigue-free and hands-free operation.  The positionable pump handle allows for right or left hand use. Finally, a reinforced hose with extended wand and adjustable nozzle allows for spraying a fine mist to a coarse spray. Heavy-duty poly construction and VITON chemical resistant seals ensure years of protection and resistance to wear and tear.

This backpack sprayer comes with a Brass Cone Adjustable Nozzle, Plastic Adjustable Cone Nozzle, and a Plastic Fan Tip Nozzle (Fan Tip is not adjustable, it is a fixed fan pattern). There is NOT a Brass Fan Tip Nozzle available for this sprayer.



Product Documents


The Chapin Professional 4 Gallon backpack sprayer 61800 is the pro's choice for larger spray jobs.

FEATURES:

  • Over-sized filler cap that makes filling the tank easy with less spilling.
  • Large capacity 4 gallon tank.
  • Carrying straps for fatigue-free and hands-free operation.
  • Internal 4 position spray valve allows for expert pressure control from 15psi to 60 psi.
  • Positionable pump handle allows for right or left hand use.
  • Reinforced hose with extended wand and adjustable nozzle allows for spraying a fine mist to a coarse spray.
  • Heavy-duty poly construction.
  • VITON chemical resistant seals that ensure years of protection and resistance to wear and tear.

(Originally sold as model #6148)

Rating Snapshot

5 stars   33
4 stars   4
3 stars   2
2 stars   0
1 star   0

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Average Customer Rating
5 out of 5 stars (39)

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Most Helpful Customer Reviews
  • 36 of 36 people found this review helpful:

    5 of 5 stars  Chapin Pro Series 4 Gallon Sprayer
    By Jeff in Detroit, MI on 05/19/2009

    I love this Chapin Pro 4 gallon sprayer, it has been the best one that I have found. I have used a lot of sprayers,and this one has been the best by far!! Only thing I would like is the option to add an extension to the wand.

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  • 22 of 23 people found this review helpful:

    5 of 5 stars  Makes quick work of a distasteful chore
    By Thomas in Midway, GA on 05/24/2013
    Verified Purchase

    I live in coastal GA, which means an unrelenting assault by palmetto bugs (giant cockroaches for those fortunate enough not to know), sand gnats, and ants. Before buying this sprayer it took me 3-4 hours to lay down a barrier around the house, garage, and workshop as well as the interior of the garage and workshop (I forgot to mention the nasty spiders lurking in those places). My smaller sprayers have limited pressure, making it a real bother getting around the shrubbery. The frequent need to refill chewed up a lot of time as did that to set it down and pump it up. From start to finish I got the job done in a little over an hour with this sprayer. I had to refill only once, and the pump lever let me effortlessly maintain maximum pressure. The sprayer delivers a wide stream, even into the rafters. The only problem I had (and it is a minor one) was getting the thing on my back when filled. Next time I'll set it on a table first. The rig is surprisingly comfortable once the straps are adjusted - even with a bad back I barely noticed the weight. There is a right tool for every job. For my money, this is precisely that.

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  • 20 of 20 people found this review helpful:

    5 of 5 stars  Love it
    By Dewayne in Bristol,Va on 06/11/2012
    Verified Purchase

    This Pro Series 4 gallon is a nice unit and it makes quick work of my needs when spraying my property as i use it for weed and grass killer. Saves me time from doing refill and the adjustable pressure is a nice feature. I don't think anyone could go wrong selecting this unit.The wand is easily adjustable and the hand pump is both very accessible and effective. There is great filtration to help keep junk from getting into the tank or wand and it's easy to clean when done. I've used it both full and with just only 2 gallons and have been delighted with the results from using the Chapin.

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  • 12 of 12 people found this review helpful:

    5 of 5 stars  4 gallon Backpacl
    By Matthew in CA on 12/08/2010
    Verified Purchase

    The backpack arrived very quickly and I was very satisfied with the transaction. Very convenient to wear on the back, pump works great, would never want to use a hand held one again! Great product.

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  • 10 of 11 people found this review helpful:

    5 of 5 stars  Great Sprayer
    By E in Houston, TX on 03/28/2011
    Verified Purchase

    Great Sprayer. No problems at all with it. Very pleased with the sprayer and the seller.

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Most Recent Customer Reviews
  • 5 of 5 stars  Works great
    By Bob in South Bend, IN on 09/02/2017

    I have a 10 acre woods, and I want to clear it of invasive undergrowth over the next few months. This unit is just right for the job. I fill it with the four gallons, use that in a planned area, and do another run when I choose to.

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  • 5 of 5 stars  Chapin Pro Series 4 Gallon Backpack (#61800)
    By Charles in N. Las Vegas, Nevada on 08/04/2017

    Easy to assemble. Can't wait to use it.

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  • 1 of 1 people found this review helpful:

    3 of 5 stars  Good for price.
    By Nick in Lititz, PA on 07/20/2017

    Works well. Easy to fix and clean. We use ours pretty hard as professionals and they hold up pretty well. The straps aren't the best, and the pump handle likes to come loose. I personally don't like the way the pump action works (upstroke), but none of the rest of my crew is bothered by it. They prefer this one over the other kind we use.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Chapin Pro Series 4 gallon Backpack
    By Jay in Arroyo Grande,CA on 07/08/2017

    This is my second Chapin Pro 4 Gallon Backpack. I used the first one for weedkiller. It's 2 yrs old and still looks and operates as new. I ordered this second one for non-weedkiller applications. I have a one acre yard and it beats dragging a hand held sprayer around the yard. "Do My Own" had the lowest price for this sprayer including Amazon. I would highly recommend this sprayer to my friends looking for a backpack sprayer.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Works like a champ
    By Brent in Syracuse, UT on 06/30/2017

    I've run about 10 gallons through it and it's working great! Soooo much easier than lugging my 2 gal handheld around.

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  • 1 of 1 people found this review helpful:

    4 of 5 stars  Overall great
    By Abiud in Edcouch, TX on 06/23/2017

    It appears and feels very durable. I've used it a few times and works great. However, the padding on the straps could use more cushion and be wider so they could distribute the load on a larger area of the shoulders. When the container is full, the straps will feel like tight ropes around the shoulders. Besides that, the product is excellent.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Good quality for the money
    By Brent in McDonough, Georgia on 06/20/2017

    Have used this sprayer several times since purchasing. It's very good quality. Comes with two different tips...one for spraying a stream or circular spray pattern, and one that sprays a flat spray pattern.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Great sprayer, good price
    By R. in Steilacoom WA on 06/08/2017

    I've had this sprayer only two weeks, but from day one I've been impressed. First, it arrived sooner than I expected; second it fits well, operates well, and has three spray options that work very well. Obviously two weeks doesn't provide info on how well it lasts, but so far so good. And so far a bargain at the price. My last sprayer was German-made. This one is better.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Life got so much better!
    By Keith in Amherst on 05/19/2017

    I LOVE this backpack sprayer. I spray my yard 3x a year to keep ticks away. Before I got this backpack sprayer, I used the 1 gl sprayer that I had to carry. That was miserable. This Chapin sprayer holds 4 gl on my back. It was so much faster and easier to spray my yard. It is also well built and can be repaired. Worth every cent!

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Easy to use
    By Eric in York, PA on 04/14/2017

    This sprayer is easy to use and assemble. The system stays primed and is easy to pump with the lever at your side. You can select which side the pump lever is on when you assemble the sprayer.

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See all 39 reviews »

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03/14/2011 Savannah

QHow do you add pressure to the backpack sprayer?
Most sprayers have the pump on the lid.

AHand held sprayers have the pump on the lid that you hold.  If you notice in the picture there is a rod that extends from the bottom of the pack.  On backpack sprayers since you where it on your back, the rod extends out from your side and you pump the rod up and down to pressurize the tank.

7 of 8 people found this answer helpful.
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05/03/2010 Michele

QHow far does the Chapin Slide Pump Sprayer reach? A second story home?

AThis backpack sprayer only reaches about 10 feet high.  For higher areas we recommend the Chapin Slide Pump Sprayer which can reach up to 30 feet high.  We also have a video that shows the slide pump sprayer in action on the slide pump product page. 

6 of 7 people found this answer helpful.
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11/15/2012 Chris from Augusta

QDoes is drip/leak?
Almost every sprayer i've had leaks or drips chemicals in my trailer. Makes cleaning out the trailer rather pointless. Will this one leak if I leave chemical sitting in it, and it sitting in my trailer? Thanks!

AYou cannot store chemicals in sprayers as it will weaken the gaskets and other portions of the sprayers and cause leaking. Leaving chemicals in sprayers for more than 24 hours at a time will also void any and all warranties offered by the manufacturers. For short term use (for a few hours) stored product in the sprayer should not leak out as long as the sprayer is kept upright.

6 of 6 people found this answer helpful.
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05/16/2010 Bernie

QHow far will the Chapin Pro Series 4 Gallon Backpack sprayer reach horizontal (craw space)?

AMost hand pump sprayers including the Chapin Pro Backpack sprayer will only spray about 10 feet at the most from the end of the sprayer wand.  If you need to reach further, we do sell the Chapin Slide Pump Sprayer which can reach up to 30 feet away. 

5 of 5 people found this answer helpful.
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01/16/2013 S from Dallas Texas

QHow much does the empty Chapin Pro Series 4 Gallon Backpack (#61800) sprayer weigh?

AThe Chapin Pro Series 4 Gallon Backpack (#61800)sprayer weighs around 10 lbs empty.

4 of 4 people found this answer helpful.
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02/23/2015 Benjamin from Az

QIs the Chapin Pro Series 4 Gallon Backpack (#61800) generally compatible with both insecticides and herbicides?
I am interested in spraying my weeds and doing my 2-6 month insect barrier sprays with this unit, I noticed it has Viton seals, does that mean it's pretty much generally compatible with most of the insecticides and herbicides available here on DMOPC?

AYes, the Chapin Pro Series 4 Gallon Backpack (#61800) can be used with both insecticides and herbicides.  Be sure to triple rinse and thoroughly your sprayer in between products though.

4 of 5 people found this answer helpful.
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07/18/2013 Steve from Green Bay, Wi

QIs the Chapin Pro Series 4 Gallon Backpack a diaphragm pump or a piston pump?

AThe Chapin Pro Series 4 Gallon Backpack is a Piston Pump.

2 of 2 people found this answer helpful.
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04/02/2013 Shane from Freedom,ca

QDo you guys sell the plastic replacement wand for the #61800 model?

AWe do sell the replacement wand for the 61800. It is part number 6-8101.

2 of 2 people found this answer helpful.
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05/26/2015 Mike from Murrells Inlet Sc

QIs the pump handle for the right hand, or left.

AThe pump handle can be changed on the Chapin Pro Series 4 Gallon Backpack sprayer. It can go on either the left or right side depending on which hand you use more frequently.

1 of 2 people found this answer helpful.
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05/19/2016 Gloria from Crystal Lake, Il

QIs the Chapin Pro Series 4 Gallon Backpack (#61800) good for spraying near flowers?
I want to spray weeds among flowers in my flower beds, so I need a very precise spray so as to get close but not hit flowers. Is this sprayer good for that?

A

Yes, the Chapin Pro Series 4 gallon backpack sprayer is a very good option for precision spraying. There are different tip sizes available, such as pin stream, fan, fine mist and coarse stream, to give you the best and most accurate spray depending on what you are wanting to do. There is also an internal 4 position spray valve allows for expert pressure control from 15psi to 60 psi.

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10/24/2015 John from Davie

QCan you use a Chapin Pro Series 4 Gallon Backpack to spray a paver sealer?
I would like to use the unit to spray a water based paver sealer on my patio. I want to make sure this unit can also handle that type of product. And do you recommend the piston unit for it? Also, do you recommend a particular setting for spraying the sealer?

A

No, a paver sealer cannot be used inside of a Chapin Pro Series 4 Gallon Backpack. You may want to contact Chapin directly for advice on which sprayer would be suitable for applying the specific product you have. You can reach them at 800-950-4458.

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See all 11 customer questions »


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