RickDel

Thanks Tim. I had a feeling you might recommend that pump for my situation. I actually bought most my PW accessories from Bob already, and I enjoyed doing business with him. And I hear you about staying off the roof. Like I said, I'm all about safety, and I'm not a fan of heights! Hagerstown is not too far away. Do you have any buddies doing business in Delaware? I'd gladly volunteer some man hours for a chance to learn a few things. Rick

Hey Timo, Ideally, I'd like to shoot it from a ladder, but I assume I'm goingto need to walk a majority of it if I'm using low end equipment. I definitelydon't want to make 50 trips up and down the ladder with a pump up!! And I don'tmind buying good equipment if I can get professional results!! I do have a friend that's going to assist me and I'm equipped with professionalladders and fall equipment. I take safely VERY seriously, but I'm limited onexperience with this type of work. I don't mind reading and researching as longas I have a starting point (I've probably spent at least 4 hours a day readingabout PW'ing over the past six weeks, and I know that's still a drop in thebucket). Guys on forums that like always say, "use the searchfunction" can be annoying!! Searching something you have no knowledge ofcan be challenging! It's like trying to learn a second language from someonethat doesn't speak English! So, I'm just a home owner, but I've been reading daily and I'm seriouslyconsidered the roof cleaning business as a side job. I don't see this serviceoffered in my immediate area, but I notice dirty roofs EVERYWHERE!! I assumeit's available from the local PW'ing guys, but I've just never noticed it advertised,and when I told my coworkers about it, they were all very intrigued and seemedto need/want the service as well. I've been in law enforcement for severalyears, and I'm ALWAYS looking for a way out (I don't find LE rewarding anymoreand honestly feel that roof cleaning would be a more fulfilling occupation).Like I said, this is just a consideration and I'm ALWAYS looking for a careerchange. I’m not the type of person tojump into a major decision like this, but it definitely has me thinking!! Thanks for the all help. And BTW, I ended up purchasing a Pressure Pro 4GPM,4,000PSI pressure washer with a Cat pump and a separate unloader. Thanks again! Rick

Hello, I've learned A LOT from this site in a very short time and am VERY grateful for all the help I've already received and especially the DIY access!!! Anyhow, recently bought a new PW and X-jet and now I want to clean everything I own, to include my roof (softwash). I initially intended to use the X-Jet to apply 'apple sauce' to my roof, but I now realize I can't get the proper ratio. Now, I'm searching for a decent way to get the job done (and keeping equipment costs below $500 total). I found a video on youtube of a guy using a Northern Tool Spot Sprayer. Although the exact model is not identified in the video, I think it's this one: NorthStar ATV Sprayer with Boomless Spray System — 26 Gallon, 5.5 GPM, 12 Volt | Broadcast + Spot Sprayers | Northern Tool + Equipment a 5.5 GPM, 200PSI unit. I've also found a couple other guys talking online about using a Northern Tool Spot Sprayer as a cheap solution to small roof cleaning jobs, but those sites don't allow DIY interaction, so I can't direct any questions to them. So my question to you is, can I use the spot sprayer below to clean my roof? It's 12v, 16 gallon, 2.2GPM, 60 PSI, with a 3/8 hose and NorthStar pump (designed for pesticides). I'll need it for a 2nd story roof (I doubt it will supply enough PSI at that height). NorthStar ATV Broadcast Spot Sprayer — 16 Gallon, 2.2 GPM, 12 Volt | Sprayers | Northern Tool + Equipment If not, can you guys offer any suggestions? I'd like a unit that will handle the 'apple sauce' mixture and can be used 2-3 time a year with proper maintenace. Thanks!! - Rick

Guess I was over complicating it! Thanks!

Hello, I just bought a Pressure Pro 4,000 PSI 4GPM cold water pressure washer and I'd like to get a variety of tips to reduce the PSI. I've seen this chart, but not sure how to apply it to my needs. For exaple, is there a way to know which tip will give me 1,000PSI using this chart? If not, can you guys explain how it's done? Thanks - Rick [TABLE=width: 99%, align: center] [TR] [TD=width: 6%, bgcolor: #cccccc] Nozzle size [/TD] [TD=width: 6%, bgcolor: #cccccc] Orifice Diameter [/TD] [TD=width: 5%, bgcolor: #cccccc] 40 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 100 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 250 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 500 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 600 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 700 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 800 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 1000 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 1200 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 1500 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 2000 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 2500 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 3000 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 3500 PSI [/TD] [TD=width: 5%, bgcolor: #cccccc] 4000 PSI [/TD] [TD=width: 6%, bgcolor: #cccccc] 5000 PSI [/TD] [/TR] [TR] [TD=width: 6%] 2.0 [/TD] [TD=width: 6%] 0.034 [/TD] [TD=width: 5%] 0.20 [/TD] [TD=width: 6%] 0.32 [/TD] [TD=width: 5%] 0.50 [/TD] [TD=width: 6%] 0.71 [/TD] [TD=width: 5%] 0.77 [/TD] [TD=width: 6%] 0.84 [/TD] [TD=width: 5%] 0.89 [/TD] [TD=width: 6%] 1.00 [/TD] [TD=width: 5%] 1.10 [/TD] [TD=width: 6%] 1.22 [/TD] [TD=width: 5%] 1.41 [/TD] [TD=width: 6%] 1.58 [/TD] [TD=width: 5%] 1.73 [/TD] [TD=width: 6%] 1.87 [/TD] [TD=width: 5%] 2.00 [/TD] [TD=width: 6%] 2.40 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 2.25 [/TD] [TD=width: 6%, bgcolor: #cccccc] ? [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.23 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.36 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.56 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.80 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.87 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.94 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.01 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.13 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.23 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.38 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.59 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.78 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.95 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.10 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.25 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.52 [/TD] [/TR] [TR] [TD=width: 6%] 2.5 [/TD] [TD=width: 6%] 0.039 [/TD] [TD=width: 5%] 0.25 [/TD] [TD=width: 6%] 0.40 [/TD] [TD=width: 5%] 0.63 [/TD] [TD=width: 6%] 0.88 [/TD] [TD=width: 5%] 0.97 [/TD] [TD=width: 6%] 1.05 [/TD] [TD=width: 5%] 1.12 [/TD] [TD=width: 6%] 1.25 [/TD] [TD=width: 5%] 1.37 [/TD] [TD=width: 6%] 1.53 [/TD] [TD=width: 5%] 1.77 [/TD] [TD=width: 6%] 1.98 [/TD] [TD=width: 5%] 2.17 [/TD] [TD=width: 6%] 2.34 [/TD] [TD=width: 5%] 2.50 [/TD] [TD=width: 6%] 2.80 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 2.75 [/TD] [TD=width: 6%, bgcolor: #cccccc] ? [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.28 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.44 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.69 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.97 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.07 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.15 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.23 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.38 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.51 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.68 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.94 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.17 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.38 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.57 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.75 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.07 [/TD] [/TR] [TR] [TD=width: 6%] 3.0 [/TD] [TD=width: 6%] 0.043 [/TD] [TD=width: 5%] 0.30 [/TD] [TD=width: 6%] 0.47 [/TD] [TD=width: 5%] 0.75 [/TD] [TD=width: 6%] 1.06 [/TD] [TD=width: 5%] 1.16 [/TD] [TD=width: 6%] 1.25 [/TD] [TD=width: 5%] 1.34 [/TD] [TD=width: 6%] 1.50 [/TD] [TD=width: 5%] 1.64 [/TD] [TD=width: 6%] 1.84 [/TD] [TD=width: 5%] 2.12 [/TD] [TD=width: 6%] 2.37 [/TD] [TD=width: 5%] 2.60 [/TD] [TD=width: 6%] 2.81 [/TD] [TD=width: 5%] 3.00 [/TD] [TD=width: 6%] 3.35 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 3.25 [/TD] [TD=width: 6%, bgcolor: #cccccc] ? [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.33 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.51 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.81 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.15 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.26 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.36 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.45 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.63 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.78 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.99 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.30 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.57 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.81 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.04 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.25 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.63 [/TD] [/TR] [TR] [TD=width: 6%] 3.5 [/TD] [TD=width: 6%] 0.048 [/TD] [TD=width: 5%] 0.35 [/TD] [TD=width: 6%] 0.55 [/TD] [TD=width: 5%] 0.88 [/TD] [TD=width: 6%] 1.24 [/TD] [TD=width: 5%] 1.36 [/TD] [TD=width: 6%] 1.46 [/TD] [TD=width: 5%] 1.57 [/TD] [TD=width: 6%] 1.75 [/TD] [TD=width: 5%] 1.92 [/TD] [TD=width: 6%] 2.14 [/TD] [TD=width: 5%] 2.47 [/TD] [TD=width: 6%] 2.77 [/TD] [TD=width: 5%] 3.03 [/TD] [TD=width: 6%] 3.27 [/TD] [TD=width: 5%] 3.50 [/TD] [TD=width: 6%] 3.91 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 4.0 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.052 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.40 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.63 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.41 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.55 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.67 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.79 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.00 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.19 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.45 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.83 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.16 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.46 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.74 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.47 [/TD] [/TR] [TR] [TD=width: 6%] 4.5 [/TD] [TD=width: 6%] 0.055 [/TD] [TD=width: 5%] 0.45 [/TD] [TD=width: 6%] 0.71 [/TD] [TD=width: 5%] 1.13 [/TD] [TD=width: 6%] 1.59 [/TD] [TD=width: 5%] 1.74 [/TD] [TD=width: 6%] 1.88 [/TD] [TD=width: 5%] 2.01 [/TD] [TD=width: 6%] 2.25 [/TD] [TD=width: 5%] 2.46 [/TD] [TD=width: 6%] 2.76 [/TD] [TD=width: 5%] 3.18 [/TD] [TD=width: 6%] 3.56 [/TD] [TD=width: 5%] 3.90 [/TD] [TD=width: 6%] 4.21 [/TD] [TD=width: 5%] 4.50 [/TD] [TD=width: 6%] 5.03 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 5.0 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.057 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.50 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.79 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.25 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.77 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.94 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.09 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.24 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.50 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.74 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.06 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.54 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.95 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.33 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.68 [/TD] [TD=width: 5%, bgcolor: #cccccc] 5.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 5.59 [/TD] [/TR] [TR] [TD=width: 6%] 5.5 [/TD] [TD=width: 6%] 0.060 [/TD] [TD=width: 5%] 0.55 [/TD] [TD=width: 6%] 0.87 [/TD] [TD=width: 5%] 1.38 [/TD] [TD=width: 6%] 1.94 [/TD] [TD=width: 5%] 2.13 [/TD] [TD=width: 6%] 2.30 [/TD] [TD=width: 5%] 2.46 [/TD] [TD=width: 6%] 2.75 [/TD] [TD=width: 5%] 3.01 [/TD] [TD=width: 6%] 3.37 [/TD] [TD=width: 5%] 3.89 [/TD] [TD=width: 6%] 4.35 [/TD] [TD=width: 5%] 4.76 [/TD] [TD=width: 6%] 5.14 [/TD] [TD=width: 5%] 5.50 [/TD] [TD=width: 6%] 6.15 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 6.0 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.062 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.60 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.95 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.50 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.12 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.32 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.51 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.68 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.00 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.29 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.67 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.24 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.74 [/TD] [TD=width: 5%, bgcolor: #cccccc] 5.20 [/TD] [TD=width: 6%, bgcolor: #cccccc] 5.61 [/TD] [TD=width: 5%, bgcolor: #cccccc] 6.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 6.71 [/TD] [/TR] [TR] [TD=width: 6%] 6.5 [/TD] [TD=width: 6%] 0.064 [/TD] [TD=width: 5%] 0.65 [/TD] [TD=width: 6%] 1.03 [/TD] [TD=width: 5%] 1.63 [/TD] [TD=width: 6%] 2.30 [/TD] [TD=width: 5%] 2.52 [/TD] [TD=width: 6%] 2.72 [/TD] [TD=width: 5%] 2.91 [/TD] [TD=width: 6%] 3.25 [/TD] [TD=width: 5%] 3.56 [/TD] [TD=width: 6%] 3.98 [/TD] [TD=width: 5%] 4.60 [/TD] [TD=width: 6%] 5.14 [/TD] [TD=width: 5%] 5.63 [/TD] [TD=width: 6%] 6.08 [/TD] [TD=width: 5%] 6.50 [/TD] [TD=width: 6%] 7.27 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 7.0 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.067 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.70 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.11 [/TD] [TD=width: 5%, bgcolor: #cccccc] 1.75 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.47 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.71 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.93 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.13 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.50 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.83 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.29 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.95 [/TD] [TD=width: 6%, bgcolor: #cccccc] 5.53 [/TD] [TD=width: 5%, bgcolor: #cccccc] 6.06 [/TD] [TD=width: 6%, bgcolor: #cccccc] 6.55 [/TD] [TD=width: 5%, bgcolor: #cccccc] 7.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 7.83 [/TD] [/TR] [TR] [TD=width: 6%] 7.5 [/TD] [TD=width: 6%] 0.070 [/TD] [TD=width: 5%] 0.75 [/TD] [TD=width: 6%] 1.19 [/TD] [TD=width: 5%] 1.88 [/TD] [TD=width: 6%] 2.65 [/TD] [TD=width: 5%] 2.90 [/TD] [TD=width: 6%] 3.14 [/TD] [TD=width: 5%] 3.35 [/TD] [TD=width: 6%] 3.75 [/TD] [TD=width: 5%] 4.11 [/TD] [TD=width: 6%] 4.59 [/TD] [TD=width: 5%] 5.30 [/TD] [TD=width: 6%] 5.93 [/TD] [TD=width: 5%] 6.50 [/TD] [TD=width: 6%] 7.02 [/TD] [TD=width: 5%] 7.50 [/TD] [TD=width: 6%] 8.39 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 8.0 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.072 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.80 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.26 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 2.83 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.10 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.35 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.58 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.00 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.38 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.90 [/TD] [TD=width: 5%, bgcolor: #cccccc] 5.66 [/TD] [TD=width: 6%, bgcolor: #cccccc] 6.32 [/TD] [TD=width: 5%, bgcolor: #cccccc] 6.93 [/TD] [TD=width: 6%, bgcolor: #cccccc] 7.48 [/TD] [TD=width: 5%, bgcolor: #cccccc] 8.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 8.94 [/TD] [/TR] [TR] [TD=width: 6%] 8.5 [/TD] [TD=width: 6%] 0.074 [/TD] [TD=width: 5%] 0.85 [/TD] [TD=width: 6%] 1.34 [/TD] [TD=width: 5%] 2.13 [/TD] [TD=width: 6%] 3.01 [/TD] [TD=width: 5%] 3.29 [/TD] [TD=width: 6%] 3.56 [/TD] [TD=width: 5%] 3.80 [/TD] [TD=width: 6%] 4.25 [/TD] [TD=width: 5%] 4.66 [/TD] [TD=width: 6%] 5.21 [/TD] [TD=width: 5%] 6.01 [/TD] [TD=width: 6%] 6.72 [/TD] [TD=width: 5%] 7.36 [/TD] [TD=width: 6%] 7.95 [/TD] [TD=width: 5%] 8.50 [/TD] [TD=width: 6%] 9.50 [/TD] [/TR] [TR] [TD=width: 6%, bgcolor: #cccccc] 9.0 [/TD] [TD=width: 6%, bgcolor: #cccccc] 0.076 [/TD] [TD=width: 5%, bgcolor: #cccccc] 0.90 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.42 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.25 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.18 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.49 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.76 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.02 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bgcolor: #cccccc] 1.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 1.58 [/TD] [TD=width: 5%, bgcolor: #cccccc] 2.50 [/TD] [TD=width: 6%, bgcolor: #cccccc] 3.54 [/TD] [TD=width: 5%, bgcolor: #cccccc] 3.87 [/TD] [TD=width: 6%, bgcolor: #cccccc] 4.18 [/TD] [TD=width: 5%, bgcolor: #cccccc] 4.47 [/TD] [TD=width: 6%, bgcolor: #cccccc] 5.00 [/TD] [TD=width: 5%, bgcolor: #cccccc] 5.48 [/TD] [TD=width: 6%, bgcolor: #cccccc] 6.12 [/TD] [TD=width: 5%, bgcolor: #cccccc] 7.07 [/TD] [TD=width: 6%, bgcolor: #cccccc] 7.91 [/TD] [TD=width: 5%, bgcolor: #cccccc] 8.66 [/TD] [TD=width: 6%, bgcolor: #cccccc] 9.35 [/TD] [TD=width: 5%, bgcolor: #cccccc] 10.00 [/TD] [TD=width: 6%, bgcolor: #cccccc] 11.18 [/TD] [/TR] [/TABLE]

I agree! I think I'm going to get a Northstar PW with a Cat 66DX pump. That pump has an external unloader. However, I just spoke to a Northstar sales rep who told me they still discourage running bleach through the downstream, because it still has a potential of pulling some of the cleaning detergent (bleach in my case) back into the pump. (it's always something!!) Anyhow, thanks for the reply!

FYI...Just spoke to a Dewalt 4240 salesman who advised the General TX1510 injector is a 'siphoned' type and it does allow chemicals to enter the pump (so no bleach). Thanks

Good Point!! The owner's manual isn't pump spacific, because I think they use a couple different models, but it does say "do not use bleach" with the injector. I guess that's just to cover the hose and wand. Thanks

Well, this is called an 'integrated injector' so is this before or after the pump? (I've read EVERY piece of literature I can find on this pump and I can't find the answer)

Hello, I'm looking at buying a pressure washer with a General TX1510 pump w/intergrated unloader and injector. If I understand 'downstreaming' correctly, the chemicals are introducted to the water supply after it leaves the pump, so chemicals don't enter or damage the pump . However, if the TX1510 has an 'integrated' unloader/injector, does this mean the chemicals will enter the pump? I want to be able to use bleach, which I know will damage anything it touches (I plan to get a disposable bleach gun). I also realize pumps with integraged unloaders are disliked here, but I don't think I'll have any problems with the limited amount I plan to use it (UNLESS I can't use this to downstream, and in that case, I'll need to find something so I can use bleach). General TX1510 [TABLE=width: 100%] [TR] [TD=align: left]Brand: General/Interpump Pump[/TD] [/TR] [/TABLE] • General 63 Series Triplex Plunger Pump • Built-In unloader with chemical injector • Direct Drive with Gas Flange 8.0-13.0 HP SAE • Max. Volume: 4.0 GPM • Max. Discharge Pressure: 3,500 PSI • Max. Pump Speed: 3400 RPM • Shaft Diameter: 1” Hollow • Max. Horsepower Requirements: 12.72 GHP • Max. Fluid Temp.: 165° F • Inlet: 1/2" MPT • Outlet: 3/8" MPT • Forged brass head has an exclusive lifetime warranty • New long life low and high pressure seals • Drive Side: Standard right • Weight: 18.2 lb. Thanks for the help. - Rick

Hello, I'm in the process of buying a pro-sumer model pressure washer. I've narrowed it down to two different models with two different pumps. 1. A General TX1510A (built-in unloader - 4 GPM) 2. A Cat 66DX (external unloader - 3.5 GPM) The model with the Cat is $300 more expensive, so I have a pump questions to help with my decision. How will I notice the “better pump”? Will the General Pump slowly lose pressure or will it just die?? It seems to me that If it doesn't gradually lose pressure, then there's really no difference between pumps until they die, and in that case, I could buy a replacement General Pump for the difference in the initial price. Thanks!

Okay, so I'm still researching and still confused. I called Dewalt and found the pump they are currently selling with the DXPW4240 (shown above) is a General TX1510A. This is the same pump listed above for the PressurePro unit. I called Dewalt and they informed me the unloader is 'built in'; however, thePressurePro has it described as 'Adjustable Pressure Unloader Valve', and if I'm not mistaken, I can even see it attached to the pump in the picture above. So, how is it that the same General TX1510A pump can have two different types of unloaders? The Northstar from Northern Tools uses a Cat 66DX Pump. I might be better off with this one, but I only wish it was 4GPM like the Dewalt and the PressurePro. (though, I wonder if I’d even notice a difference if used the Northern 3.5GPM next to the Dewalt/PressurePro 4GPM???). Another thing to note is the Northstar is $300 shipped!! I can almost buy a new General Pump for that. The bottom line is that I just want to get something reliable that will do the job quickly and efficiently! (I don't want to let a couple hundred dollars deter me from getting a better unit). Thanks!

Timo, thanks for the help!

TIMO, thanks for the reply. Below is a cut and copy from the Dewalt website that provides the specifics of the Dewalt Pressure Washer I listed above. It indicates the pump is either a CAT or General Pump. Everything I've read leads me to believe that General Pumps are almost as good as CAT, but the parts and repairs are much cheaper. The Sam's model I listed above comes with a General Pump as well. So, are you suggesting I should only purchase a unit that includes a CAT Pump, or are you saying regardless if it's a CAT or General Pump, it will be a lower quality version then the ones they sell at Northern Tool? Thanks - Rick 4200@4.0Gpm Powered By "Honda" GX390 Series 389CC Engine The DH4240 is rated at 4200 PSI @ 4.0 GPM - more than enough power to remove the toughest dirt from any surface! The DH4240 is built on a rugged steel frame, and is powder-coat painted for long life and superb protection. The HONDA® GX390 Engine is equipped with Oil Alert® - a feature that prevents the engine from operating if the oil level falls below the safe limit. HONDA GX Series Engines have long been recognized as the industry leader in providing reliable, easy-starting and fuel efficient small engines. In addition, the engine is protected by a three-year warranty and can be serviced at any HONDA Engine location across North America. The engine transmits power to the pump through our reliable Direct-Drive System, which helps ensure long pump life. The DH4240 is built with either a CAT Pump or a GENERAL Pump. Both pumps have proven themselves in the fields for decades, and are easy to operate, maintain, and service. Both are equipped with large flow/pressure adjustment valves, giving you more control over the water flow and pressure than ever before. Both pumps are equipped with Bypass Valves, letting you release the trigger gun and stop the water flow, without having to turn the engine off. This lets you safely move around while cleaning, without having to stop and restart the engine all the time. This model includes a downstream detergent siphon tube, which will draw your favorite detergent into the water stream without having it pass through the pump. This lets you use the Black Nozzle to propel detergent on your cleaning surface, and then quickly swap over to your preferred cleaning nozzle and finish the cleaning job. Five nozzles are included with this pressure washer - 0° (Red), 15° (Yellow), 25° (Green), 40° (White), and 65° (Black). The 0° Red is excellent for removing chewing gum from concrete surfaces. The 15° Yellow and 25° Green are most commonly used for cleaning a wide variety of surfaces. The 40° White nozzle is most commonly used to wash down surfaces or clean broad, lightly dirty surfaces. The 65° Black nozzle applies detergent at lower pressure to surfaces, and is the only nozzle that will draw detergent into the water stream. The DH4240 is ideal for professional painters, rental property managers, or any cleaning professional that needs a very reliable pressure washer!

Timo, thanks for the quick response. I actually looked at this NorthStar Professional Series Pressure Washer — 4000 PSI, 3.5 GPM from Northern Tools last year, but everything I've been reading states that GPM is much more important than PSI, so I figured the two models I listed above must be better since they both have 4 GPM vs the NorthStar's 3.5 GPM (for approx the same price... the Dewalt is actually $300 less). and I kinda figured this would be a little bigger than what I needed, but I want a quality unit that will last, and I've learned that it's normally better to have to much than not enough. I'm aware of the potential damage from excessive PSI, but is there any other drawbacks from having a larger unit? Thanks Again!