Love the video, I’ve done crazy research over the last 4 days. Your set up is ideal. I called a few manufacturers. Hypro tech was very informative. If you reduce the RPM’s from 3600 to 600. You can get a true 11gpm at 200 psi. That’s using a Hypro 7700C-r. Develan 4900 without the gear reduction runs 6gpm at 100 psi continues. Thank you for the starting point. Saved us all at least $1000.
DR Downstream your crushing it my man! I was just coming to the realization that there was something wrong with this twelve volt scene. And being that I work summers on a wild land fire engine and am familiar with the pumps I was like why couldn’t I build a gas powered soft wash system? Enter DR Softwash thanks man!
Hey boss. I know this is an old video, you think you could show a video of each piece and your plumbing? If I can visually see it I can build it! I’m looking to upgrade from 12v
How did this pump end up working for you. I have a brand new predator engine I was going to put a ar 45 or something like that. I would rather do a budget build.
Just wondering if your experience with this pump is still positive. I really like what you’ve done and I agree with you that it’s potentially a great replacement for 12v with none of the downsides of an AR pump. Anxious to hear more.
It's been just fine, use it a few times a week on average. Still no complaints. Been meaning to make another video on it to go over the plumbing for a friend of mine, probably push it out sometime this next week.
@@dr.downstream1151 well, I’ve ordered the 4900DSS. I just about decided to get a Honda motor with a 6:1 reduction gear and grab the 8900DSS. And I still might after playing around with the 4900. Thanks for the help and idea.
Please excuse my ignorance im new to this. You are using this set up for house/roof washing only. And im assuming like a 420cc/459cc for flat work? Any info is appreciated
@@dr.downstream1151 Thanks. I went back and looked at the description of the coupler. It states that it is for a 5/8" drive on the power side, which is perplexing.
Curious how you are compensating for the rpm at the engine vs the rated rpm for the pump? 3600 rpm at the engine… max rpm at pump 2200? Just throttling the engine down? Thx
This is fascinating. Quick question for you. I know some of these roller pumps are rated at 9ish gpm. Do you think it's be possible to limit the flow at the tip to 2-3 gpm? Or would that choke the engine? Also are you bypassing flow through an unloader or how does the pump stay cool?
What RPM is your motor running at? Looks like this pump is rated for 2600 RPM and I have a predator 212cc engine and just above idle I am getting 2600 RPM. Was also looking at the 6 roller pumps and they max out at 1000rpm. Just wanted to check and see if your having issues with the rpms the motor is putting out?
Literally the only thing pump setup for soft washing does better than my 12-volt flojet is gallons per minute I'm sitting at 6 at the pump of course we all know that's not what you get up the gun when it comes out realistically that's probably back down to 5 or 4 gallons a minute but I can easily get 45ft to 50ft and I've never had a problem with the 70 PSI that it puts out or whatever it is putting out by the end of the tip of the gun cuz you don't need pressure chemicals what cleans it all and that pump by itself is like $250
"literally" lol .. I've used both and the roller pump is superior compared to 12v. You can run it like 5-6 hours off a single tank of gas. If you clean a lot of cedar homes this is important. And it doesn't care about head pressure of going up 2 or 3 stories after 250 feet of hose like 12v does. Even my new setup using a lifepo battery my Fatboy doesn't quite manage what the roller pump was capable of. In my book it simply comes down to space and weight in my truckbed. I actually gave my rollerpump setup away to a subscriber.
@@stevesteve4383 What do you base this on? I know a couple other people who have been running roller pumps for years. And theirs arent even stainless or specifically meant for corrosives like this Delavan.
@@dr.downstream1151 I tried posting a couple comments. One with a link and the other saying you’ll have to look it up on northern tools website yourself but they both got deleted.
@@Johnnyreengo Odd. No I really didn't delete anything, I've been busy washing houses all day. One thing I was going to ask is if that $150 pump on Northern Tool is the stainless/corrosive rated pump? Cause I was pretty sure their normal iron chassis 4-rollers are what they sold for $150. If the stainless one is indeed listed on there for $150 jump on it because they have the pricing mislabeled!
I know, I originally was going to orientate it differently but my plan didn't work as well as I intended, one of these days I'll fix it but it works for now. I need to put a 90 on it.
@@tee87jay Were just getting over covid 90% first unit done today hopefully done by end of week then we will fine tuning it once thats done 4 more to go
Sprayer Depot has that pump listed at 150 psi. It apparently isn't.
AH so I'm NOT CRAZY!
Love the video, I’ve done crazy research over the last 4 days. Your set up is ideal. I called a few manufacturers. Hypro tech was very informative. If you reduce the RPM’s from 3600 to 600. You can get a true 11gpm at 200 psi. That’s using a Hypro 7700C-r. Develan 4900 without the gear reduction runs 6gpm at 100 psi continues. Thank you for the starting point. Saved us all at least $1000.
I love the ingenuity! Seeing this two years later. Now I am on to your 1 year report.
It's nice to see it still shooting the juice! Great vid!
DR Downstream your crushing it my man! I was just coming to the realization that there was something wrong with this twelve volt scene. And being that I work summers on a wild land fire engine and am familiar with the pumps I was like why couldn’t I build a gas powered soft wash system? Enter DR Softwash thanks man!
Do you have a video of this pump working
Hey boss. I know this is an old video, you think you could show a video of each piece and your plumbing? If I can visually see it I can build it! I’m looking to upgrade from 12v
Great video. I bought the parts list. How did you connect the coupler to the Predator Engine? The shaft on the Predator is 3/4 and the coupler is 5/8?
How did this pump end up working for you. I have a brand new predator engine I was going to put a ar 45 or something like that. I would rather do a budget build.
Are you still using the roller pump? If so, what issues have you experienced?
Just wondering if your experience with this pump is still positive. I really like what you’ve done and I agree with you that it’s potentially a great replacement for 12v with none of the downsides of an AR pump. Anxious to hear more.
It's been just fine, use it a few times a week on average. Still no complaints. Been meaning to make another video on it to go over the plumbing for a friend of mine, probably push it out sometime this next week.
@@dr.downstream1151 thank you. I like your mixer as well. Looking forward to the video. Much appreciated!
@@impressiveink Hey you're welcome. I kind of enjoy making these videos, appreciate the feedback.
@@dr.downstream1151 well, I’ve ordered the 4900DSS. I just about decided to get a Honda motor with a 6:1 reduction gear and grab the 8900DSS. And I still might after playing around with the 4900. Thanks for the help and idea.
@@impressiveink I think you'll do good. Just keep the roller pump primed.
Did you have to reverse the pump for the gas motor? I understand the comes ready for a PTO shaft which turns opposite of a gas motor.
No you have to get a PTO specific pump. I forget which direction mine goes.
Please excuse my ignorance im new to this. You are using this set up for house/roof washing only. And im assuming like a 420cc/459cc for flat work? Any info is appreciated
Been waiting for an update!!!
Does the 212 predator come with different diameter shafts? I noticed the coupler is 5/8” but the predator I have , has a shaft that is 3/4”.
iirc it's 3/4" on the predator side and 5/8" on the pump side. Let me dig up the parts list I see I never added it to the video description:(
@@dr.downstream1151 Thanks. I went back and looked at the description of the coupler. It states that it is for a 5/8" drive on the power side, which is perplexing.
So how does the coupler fit?
Got the parts and the coupler won’t go on the predator
I just wanna build my truck like yours
IM moving ON to a 24v 10 GPM
5/8 hose
Don't they have pumps already built at harbor freight? How come you built it?
Do you have a video of the setup in action?
yeah a couple videos back
Curious how you are compensating for the rpm at the engine vs the rated rpm for the pump? 3600 rpm at the engine… max rpm at pump 2200? Just throttling the engine down? Thx
Yep just running a $12 tach and throttling back.
Could these roller style pumps be used with a metering system? If so these would be awesome!!!
yes that's how mine is plumbed. Same metering valves feed both the s9ftwash and the downstream injector
This is fascinating. Quick question for you. I know some of these roller pumps are rated at 9ish gpm. Do you think it's be possible to limit the flow at the tip to 2-3 gpm? Or would that choke the engine? Also are you bypassing flow through an unloader or how does the pump stay cool?
you can run these pumps as throttled back as you want if a lower flow is needed
Sir, would you mind posting links for the manifold you made??
It's just a spinkler manifold I ordered from Dripworks. They're like $18
@@dr.downstream1151 thank you!!
Can you post the parts list? Great video. New sub
Is t pulling from the bottom of the tank or the top?
What RPM is your motor running at? Looks like this pump is rated for 2600 RPM and I have a predator 212cc engine and just above idle I am getting 2600 RPM. Was also looking at the 6 roller pumps and they max out at 1000rpm. Just wanted to check and see if your having issues with the rpms the motor is putting out?
What size proportioner are you using.
Very cool, what check valves are on the proportioner?
So the roller pump has a bypass?
Yes. Fed back through 10 feet of line and then into the pump inlet.
Literally the only thing pump setup for soft washing does better than my 12-volt flojet is gallons per minute I'm sitting at 6 at the pump of course we all know that's not what you get up the gun when it comes out realistically that's probably back down to 5 or 4 gallons a minute but I can easily get 45ft to 50ft and I've never had a problem with the 70 PSI that it puts out or whatever it is putting out by the end of the tip of the gun cuz you don't need pressure chemicals what cleans it all and that pump by itself is like $250
"literally" lol .. I've used both and the roller pump is superior compared to 12v. You can run it like 5-6 hours off a single tank of gas. If you clean a lot of cedar homes this is important. And it doesn't care about head pressure of going up 2 or 3 stories after 250 feet of hose like 12v does. Even my new setup using a lifepo battery my Fatboy doesn't quite manage what the roller pump was capable of. In my book it simply comes down to space and weight in my truckbed. I actually gave my rollerpump setup away to a subscriber.
Post some links for your build please..be interested in building this.
I will, I'm still put working on the machine. I'll post em later below in the about section.
The roller pump last a little bit but will start leaking like a stuck pig soon and even the rebuild won’t stop the leaking
@@stevesteve4383 What do you base this on? I know a couple other people who have been running roller pumps for years. And theirs arent even stainless or specifically meant for corrosives like this Delavan.
Great little set up. It will last you a while just as long as you keep rinsing it.
Can it pull from the top of the tank?
Yes that's how my system is plumbed.
@@dr.downstream1151 thanks
How is this system holding up?
Just fine. Used it for all of 2021.
What's the name of that pump and where did you get it from oh yes I'm enjoying your videos Dr
I ordered it off eBay.
that delavan pump is $150 at northern tool
Do you have a link?
@@dr.downstream1151 are you deleting my comment?
@@Johnnyreengo No not at all you haven't been anything but nice. Is YT blocking link sharing in the comments?
@@dr.downstream1151 I tried posting a couple comments. One with a link and the other saying you’ll have to look it up on northern tools website yourself but they both got deleted.
@@Johnnyreengo Odd. No I really didn't delete anything, I've been busy washing houses all day. One thing I was going to ask is if that $150 pump on Northern Tool is the stainless/corrosive rated pump? Cause I was pretty sure their normal iron chassis 4-rollers are what they sold for $150. If the stainless one is indeed listed on there for $150 jump on it because they have the pricing mislabeled!
When you going to build me a rig?
Probably not a terrible idea for me to sell these in kit form?
I would be interested in getting a kit if you go that route.
Cord orientation is kind of awkward
I know, I originally was going to orientate it differently but my plan didn't work as well as I intended, one of these days I'll fix it but it works for now. I need to put a 90 on it.
6900 would be crazy
just bought 4 of the 6900 getting ready to set them up
@@mrspowerwash5690 if you dont mind i would like to see a video of them please.
@@tee87jay just got them today picking up at truck depot tomorrow and hydro mixers will be in next week will do a video when setup
@@mrspowerwash5690 you got them running?
@@tee87jay Were just getting over covid 90% first unit done today hopefully done by end of week then we will fine tuning it once thats done 4 more to go
Nice! I am trying to build a channel too. I just sent you another sub.