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General Pump Hammerhead Semi-Pro 20" Surface Cleaner w/ ABS Housing & Greasable Zerk (4000 PSI 180°F)

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General Pump Pressure Washers and Accessories
Model: DCFSCP20GZ
(Based on expert analysis, manufacturer ratings and customer reviews)

4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5
50 Reviews
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  • Features
  • Specs
  • 7
    Q&A 
  • 50
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Inflow
3/8
3/8" Snap Coupler (Female)
Outflow
Surface Cleaner
Surface Cleaner
Hammerhead Flat Surface Cleaner
Hovers above the surface just like the shark

Patented Compensating Spray Gun
Helps reduce operator's arm & shoulder fatigue

Prosumer Grade
Rugged ABS cover resists rust & corrosion
Designed for pressure washers up to 4000 PSI (8 GPM)
Requires at least 3 GPM to work properly

Spray Skirt Around Cover
Stiff 2" bristles keep the high pressure water contained

Works With Cold or Warm Water
Withstands temperatures up to 180 F
Operates efficiently from 2000 PSI to 4000 PSI

Greasable Zerk
Servicable Swivel with much longer service life
Must grease zerk each use


Accessories
Accessory Grade
Prosumer
Accessory Style
Gas
Inflow
3/8" Snap Coupler (Female)
Outflow
Surface Cleaner
Minimum GPM Gallon per Minute
3
Maximum GPM Gallon per Minute
8
Rated PSI
4000 PSI
Overview
Weight
17 Pounds
Product Length
20 Inches
Product Width
20 Inches
Product Height
70 Inches
Consumer Warranty
30 Days
UPC
682491072072
Model
DCFSCP20GZ
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  7 Questions
Q: BRIAN, Hi I will start my pressure washer bussines pretty soon, Can You recommend me what equipment is good for professional beginners since I just have less than 1700 dollars.

I appreciate You help,

by JAIME SANCHEZ from Texas on August 07, 2016

A: We have a good selection of Start Your Own Business Kits available for a variety of budgets.

You may also find this How To Start Or Expand Your Business article from our How-To Library helpful. Here you will also find How-To tips for specific cleaning projects.
by Brian, Product Expert
Q: Does the Hammerhead surface cleaner include the 3/8" socket high pressure quick connector required to connect it with my pressure washer hose?

If not, are the threads on the surface cleaner male or female?

by Craig from Washington on July 10, 2016

A: General Pump tells us this comes with a 3/8" female quick connect socket- we show the picture in one of the orange boxes across the top of the Features section.
by Brian, Product Expert
Q: Afternoon Mike,
Quick question? My Hammerhead 20' doesn't have a Zerk to add grease? Use it, love it, but concerned it's going to burn-up. Checked the top and bottom, no attachment? Bought it from you'll about 2 months ago. Did I get an old one or is there another way to lubricate it? Thanks

by JC Charles from Florida on June 28, 2016

A: Can you forward your model number or order number? We offer two one with a zerk and one without which does not offer a grease option.
by Brian, Product Expert
Q: I have purchased this model: ALH3228-S from you a few weeks ago. What would be the best surface cleaner for my machine? Alot of the reviews for the 16" cleaner say that a 3200 psi has a hard time running a surface cleaner rated from 3100-4000.
by Wes from Texas on June 27, 2016

A: The Simpson 15" Surface Cleaner rated to 3400 PSI was designed to work with your pressure washer; since your pressure is near the top of the rating you would get good performance from it.

Your pressure washer at 2.8 GPM doesn't deliver enough water volume to drive either of the 16" surface cleaners we sell. The Specs tabs show the BE unit needs at least 3.5 GPM to operate properly, and the Eagle unit needs 4 GPM minimum.
by Brian, Product Expert
Q: What type of grease do I use for the zerk fitting?
by Margaret Mulberry from Illinois on April 26, 2016

A: Grease the swivel with one or two grease gun pumps every 200 hours (or once about every 30 days of use). Use No. 2 general purpose waterproof lithium grease. For hotter water applications, use a quality high temperature grease.
by Brian, Product Expert
Q: What's the minimum PSI to operate this unit?
by Tom from Pennsylvania on January 07, 2016

A: The minimum PSI is 2000 but the most important thing is the GPM rating. The GPM needs to be AT LEAST 3.0 or the arm bar of the surface cleaner will not spin properly and cause streaking.
by Brian, Product Expert
Q: I have a small space I am trying to fit this under. What is the minimum clearance height I can use this with to get under and in my tight space?
by Margaret Mulberry from Illinois on September 16, 2015

A: You are able to get this in a space as low as 18" off the ground.
by Brian, Product Expert
General Pump DCFSCP20GZ Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5
Pros
Easy To Use (16)
I'd Buy It Again (11)
Light Weight (9)
Fast (9)
High Quality (6)
Cons
Bad Instructions (2)
none (1)
None so far (1)
Missing assembly compone... (1)
NONE (1)
98% of respondents would recommend this product to a friend
50 Reviews  Sort by 
 
Brian, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
122 Reviews
Total Helpful Votes
6046 Helpful Votes
Pressure Washers Direct Recommended

The Hammerhead Surface Cleaner is considered prosumer-grade. You can either consider it an extremely expensive consumer-grade surface cleaner. Or, it's a very inexpensive professional-grade unit.

That choice is up to you.

We love it because it's durable. The Hammerhead features a composite housing - not some cheap plastic cover. Plus, it includes a hearty handle. Simply snap your high pressure hose into the trigger gun on the handle.

The Hammerhead actually hovers over the... more
Brian Recommends This Model
Was this review helpful?
7511
Don V.
Spring Hill, FL
Purchased from Pressure Washers Direct
Purchased 9/30/15
Most Helpful Positive Review
REVIEWED
SEP.
28
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Awesome Surface Cleaner!
I bought one of these with a kit in 2010. Last week mine fell off the trailer and was lost- by the time I turned around it was gone, so I went to my pressure washing supply house and bought a Whisper Wash that was twice as expensive as the Hammerhead.

When I hooked it up to use on a pool deck I stopped after about 3 minutes and called the supply house to say that the new, over-priced unit was not 1/2 as good as my 18-inch Hammerhead. So I ordered another awesome Hammerhead from Pressure... more
Pros: Easy To Use, Fast, Reliable, High Quality
Don Recommends This General Pump Product
Don's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"I have used Pressure Washers Direct 3 times now and every time they come through for me! Thanks everyone."
 more
Brian, the Pressure Washer Expert
Product Expert
Don,
You are most welcome- we thank you for your continued business!
Was this review helpful?
51
Mike C.
Climax, GA
Purchased from Pressure Washers Direct
Purchased 7/12/17
Related Review
REVIEWED
AUG.
10
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Equipment
This surface cleaner works great. It is quiet and very efficient.
Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the DCFSCP24GZ.
Was this review helpful?
00
Brad B.
Ooltewah, TN
Purchased from Pressure Washers Direct
Purchased 6/27/17
REVIEWED
AUG.
08
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Cleaner With Appropriate Size Pressure Washer
This product is well made and functions as expected. The grease fitting, in my opinion, is a must to be able to properly maintain the unit. I am a true beginner at this so I have absolutely no experience with a surface cleaner other than the couple of hours i have tried mine out.

I do feel that the 20'" could be a bit large for my 3500 PSI, 4 GPM pressure washer. Not sure if I have enough volume of water to properly run the 20". Again, I'm a beginner and from the reading that... more
Pros: I'd Buy It Again, Light Weight, Price, Features
Brad Recommends This General Pump Product
Was this review helpful?
00
Michael M.
Biloxi, MS
Purchased from Pressure Washers Direct
Purchased 7/17/17
REVIEWED
AUG.
08
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Attachment
Used this with a Dewalt 3800 PSI 3.5 GPM pressure washer with excellent results. Greatly reduces the time it takes to clean surfaces.
Michael Recommends This General Pump Product
Was this review helpful?
00
Noel B.
Union Grove, AL
Purchased from Pressure Washers Direct
Purchased 7/31/16
REVIEWED
OCT.
20
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Product, Used Several Hours Quickly!!!
We have large areas that need pressure washing a few times each year since our home, driveway, patios and walkways are all in wooded areas. We have a 3800 PSI pressure washer. We tried several of the attachable rotor heads and they broke within a few minutes to a few hours.

After much frustration and disappointment, we purchased the "General Pump Hammerhead Surface Cleaner" and have already used it 6-8 hours during my initial use. I am extremely pleased with the performance... more
Noel Recommends This General Pump Product
Was this review helpful?
20
Herb M.
Lake Jackson, TX
Purchased from Pressure Washers Direct
Purchased 9/16/16
REVIEWED
OCT.
10
2016
4 out of 54 out of 54 out of 54 out of 54 out of 5
Works Like A Charm!
I have a extremely long driveway. In the past I rented a surface cleaner from Home Depot but had trouble with their rental. I bought the Hammerhead Semi-Pro 20".

Although I have only used it once since purchasing it in September 2016, I was very pleased with the performance. It worked like a charm!
Herb Recommends This General Pump Product
Was this review helpful?
20
Greg M.
New Port Richey, FL
Purchased from Pressure Washers Direct
Purchased 3/2/17
Total Reviews
2 Reviews
Total Helpful Votes
11 Helpful Votes
REVIEWED
MAR.
24
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Massive Time Saver
I'm using a Honda 5.5hp, 3gpm small commercial pressure washer to drive this. It did a fantastic job and it is a tremendous time saver. I cleaned just under 1000 sq.ft in about 75 minutes.

The quality seems to be good too. The unit come with spare tips, however I'm not sure if they're rated at the same flow as the ones that were installed at the factory.
Pros: Easy To Use, Fast, Servicable
Cons: Heavy, This unit is a bit heavy to maneuver around, The instructions could have clearer pictures
Greg Recommends This General Pump Product
Brian, the Pressure Washer Expert
Product Expert
Greg,
I checked the Owner's Manual PDF that we have under the Specs tab, and I'm sorry, I didn't see any details about the extra nozzles.

The spray tips should have the orifice size marked on the side or face of the nozzle. You may want to give the folks at General Pump a call at (888) 474-5487 to see if they're the same, or have a different orifice (opening) size if they're not marked.
more
Greg's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"This is my third purchase from these guys and I've had a good experience each time. Quick shipping."
 more
Was this review helpful?
10
Tom D.
Snohomish, WA
Purchased from Pressure Washers Direct
Purchased 5/5/17
Total Reviews
2 Reviews
REVIEWED
JUL.
10
2017
4 out of 54 out of 54 out of 54 out of 54 out of 5
High Marks
Nice light weight unit. Cuts pressure wash time in half. Would like to see leveling wheels.
Pros: I'd Buy It Again, Light Weight, Price, Reliable
Tom Recommends This General Pump Product
Brian, the Pressure Washer Expert
Product Expert
Tom,
I checked through the 47 different models of surface cleaners we sell, and caster wheels start to show up on some of the Semi-Pro models, and then more often on the Professional models. The caster wheels support the larger, heavier decks while cleaning and aid in moving the surface cleaner from place to place.

However, I didn't see where any of the casters are set up to be self-leveling or spring loaded. Leveling casters are fairly expensive, and using them might price a unit out of the market. You might be able to upgrade existing casters yourself if need be.
more
Was this review helpful?
00
Robert S.
Springfield, OH
Purchased from Pressure Washers Direct
Purchased 6/14/17
Total Reviews
2 Reviews
REVIEWED
JUL.
07
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Surface Cleaner
I bought a Simpson 4200 lb pressure washer along with the surface cleaner. I had a problem with debris clogging pressure nozzles while testing before 1st Job. On the 2nd Job, I started getting what I call Zebra Stripes on the driveway. I had to wash the same area twice to get cleaned, cleaned nozzles got better, but still got stripes.

I tried slowing down, overlapping and other process changes to determine the cause, but still, haven't solved the problem. Would appreciate some feedback... more
Pros: I'd Buy It Again, Reliable, Features, Easy To Store
Cons: Expensive
Robert Recommends This General Pump Product
Brian, the Pressure Washer Expert
Product Expert
Robert,
You did a good job matching the power of your pressure washer to the requirements of the surface cleaner, so you should just be zooming right along. Since you say you had some debris in the nozzles, it sounds like you may be pushing down on the surface cleaner handles. That won't give you the best result since it tends to drive gunk into the nozzles.

The surface cleaner should hover on the power of the water coming through the nozzles- you need to control where it goes without pushing down. If there is deep dirt or moss on the pavement you may need to pressure wash the top gunk off, then go back through with the surface cleaner for a deep, even clean.

Slowing down is great for heavily stained surfaces since it cleans more deeply. Some stains benefit from pre-applying a concrete cleaner or grease remover before going over them with the surface cleaner.

If you feel a mechanical issue is keeping you from getting the results you want, please give the folks at General Pump a call at (888) 474-5487.
more
Robert's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Shipping was 1 day late, but I expected that otherwise was a smooth transaction."
 more
Was this review helpful?
00
William V.
New Port Richey, FL
Purchased from Pressure Washers Direct
Purchased 5/21/17
REVIEWED
JUN.
13
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Excellent Machine-very Durable
This machine works with ease. Excellent product at the right price.
Pros: Easy To Use, Fast, Light Weight, Exceeded Expectations
Cons: NONE
William Recommends This General Pump Product
Was this review helpful?
00
Brian D.
Seattle, WA
Purchased from Pressure Washers Direct
Purchased 5/16/17
Total Reviews
4 Reviews
REVIEWED
JUN.
09
2017
4 out of 54 out of 54 out of 54 out of 54 out of 5
Good Product
When I received the package, there was some assembly required. Components for assembly were missing, but a call to Brian and these issues were resolved.

As far as using the product (and never having used anything like this before), two things surprised me:
1) You need the full 4.0 GPM from your pressure washer.
2) As you are moving the cleaner back and forth across the surface, there is a propensity for the cleaner to lift or tilt on one side or the other, usually on my strong side. Once... more
Pros: Easy To Use, High Quality, Price
Cons: Missing assembly components
Brian Recommends This General Pump Product
Was this review helpful?
00
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