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Down Stream Volumes

James VanHandle

UAMCC-Member
Does anyone know how to get more volume through your down stream injectors? We never can get enough chems through and have to rely on our X-Jet alot.
 

Ken Fenner

Fuckhead
Jim, you have this in roof cleaning so I am assuming you mean to make a downsream solution strong enough for roofs.. That is probably an endeavor not worth chasing.

To answer your question directly:

• Always use 150ft or less of hose. (the shorter the better)
• Use an undersized fixed downstreamer
• Get a YRL-50 gun from E-spec: http://www.mobicleaninc.com/?mainURL=/store/category/9xuj/Spray_Guns.html
• Use a short lance

You can use a ball valve but I prefer the distance and aim of using a short lance. The goal is to make as little back pressure as is possible. Using the above combination I get ridiculous draw ratios.
 

precisionpower

New member
Jim, to answer your question, DS'ing for a roof is definitely not realistic, unless someone knows a secret method that they aren't sharing.
 
Does anyone know how to get more volume through your down stream injectors? We never can get enough chems through and have to rely on our X-Jet alot.
James,

Give me a call sometime, if you can. DS'ing really won't work for roof cleaning unless you intend to be there all day and make nothing. I'm pretty sure that isn't your plan.

Depending on how much dedicated equipment you already have, you can get you in the game for $300 or less and the profit margins are very nice once you get it all lined out.

Thanks,
Don
 

James VanHandle

UAMCC-Member
James,

Give me a call sometime, if you can. DS'ing really won't work for roof cleaning unless you intend to be there all day and make nothing. I'm pretty sure that isn't your plan.

Depending on how much dedicated equipment you already have, you can get you in the game for $300 or less and the profit margins are very nice once you get it all lined out.

Thanks,
Don
Ok, I will call you! Im not talking about roofs i have a seperate pump for that. Just basic house cleaning is what im having a problem with. Is there a larger sized orafice that can be bought to get me more volume?

Jim Vanhandel
 

Ken Fenner

Fuckhead
Kevin, I have been meaning to take a video and do some actual measurements on film. As another testimony of the venturi strength, when I was first setting up the machine I put a little plug at the end of the DS line and it collapsed it. I have to come up with an actual ratio because I don't know what the line is flowing with the injector that is on there.

Jim, you should have zero problem cleaning vinyl siding. With 4 gallons of 12% and the soaps I use the mold at the bottom of the house is brown before I get finish soaping the peak. That's too strong, imo.

The way to get the highest ratio is to limit your flow by using the undersized injector and making sure everything else in your path is not limiting flow.
 

plainpainter

New member
I wouldn't worry about downstream ratios - I noticed I was killing mildew effectively with ratios as little as 17:1 - and that was by using a 0030 at the end of 200 feet of hose. The worst algaes are at the bottom of the house - and you use a wide open short range tip which will automatically result in a much lower {numerically} ratio that yields the strength needed.
 

James VanHandle

UAMCC-Member
I love my Foam Washing Technology . . .aka a ball valve and double simple cheery lol :got-hooligan:
I quess my injector must be broken. I washed 4 homes yesterday and couldnt get this thing to pull very much at all. Im having a problem with the 8gal per min unit 150ft hose and in one hour didnt pull 1gal of soap. This is the first im trying D/S and it doesnt work very well. I want to get this thing to work because it could save us alot of time!! I put a call into the manufactor of the injector and they may send me a high volume attachment. Well see if that works. Thanks guys!!

Jim Vanhandel
 

Mike Schoeben

New member
Try removing any filter in your soap solution. Just go with the hose in the mix. Also your mix needs to be as strong as possible to compensate for the draw rate.
 

Jim Chesmore

New member
Jim, I dont know the physics behind "why" but for some reason the higher GPM machines draw less then the 4-5 GPM rigs. At least that is what I have read on the BB's
 

James VanHandle

UAMCC-Member
Try removing any filter in your soap solution. Just go with the hose in the mix. Also your mix needs to be as strong as possible to compensate for the draw rate.
Big Mike,
Im using 3 gal 12% with a double load of simple cherry (16oz per 5) 2 gal water .
Jim Vanhandel
 

Mike Schoeben

New member
That should be a strong enough mix. Some other restrictions could be length of pw hose (over 150' the draw rate drops dramatically), or an obstruction in the injector itself. Pull it off and look through it. Can you see through it? If not, it's plugged. There's a venturi (small brass or stainless screwed in insert) inside the injector. Take a skinny screwdriver and back the venturi out and inspect.The hole should be nice and round, but if it looks pitted or worn, its shot. Chemicals, especially chlorine and NaOH, will eventually corrode and ruin the insert.

We use stainless Allison Suds-Sucker injectors alot, but we also use the cheap Northern Tool ones (General Pump). The key to making them last is after your done using it, pull it off the machine, and rise out any residual chemical so it doesn't sit there and eat the guts of the injector. Remeber, its a wear part, and won't last forever. We always carry a few diffent one's just in case. Also different sizes.

I've also noticed that the Simple Cherry doesn't run quite as well through an injector, and adding more might be the problem. Most powder form soaps don't dissolve as well as say, Dawn. Try mixing the Simple Cherry with water first then add Love. Use real warm water. Hope that helps.
 

Jim Chesmore

New member
I just remembered and easy fix to your problem. Make sure your injector is located as close to your reel as possible. If you have it connected just after your pump it will not draw very well.
 

Johnny T

New member
Chlorine is very caustic and can really wreak havoc on the injectors. I actually had to deal with this problem last week. All I needed was a new injector. I ended up getting quick couplers put on either end so I can run 50 feet of hose from the machine, throw in the injector, and then run another 50 to the gun if i want. I got a fixed 5/1 ratio plug in it. Only cost me $40 and should last two seasons.
 

Michael Kreisle

Contributing Member
Check your trigger gun also. It should be rated at at least 12 gpm. The larger opening in the higher flowing guns help to lower any back pressure that can cause the downstreamer to draw less solution. With the 8 gpm machines, I use a 3-5 gpm Down streamer (General High Draw) and 0050-0060 tips and draw solutions like crazy up to 250 feet of hose.
 
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