Tags:Gasoline Pressure Washer Pressure Washer High Pressure Washer
It is nameGasolined that because it is an "external" injection system, introducing the cleaner to the water after all of the hoses and fittings. Using an X-Jet prolongs the life of all of your wear items such as hoses and quick-connects.
Always soap from the bottom up and rinse from the top down. You can apply a strong cleaner to the surface of the house and let it sit for about ten minutes before rinsing it off.
You can accomplish the job with many different ingredients, but degreasers and sodium hypochlorite are the primary ingredients that most professionals rely on. Our experience led us to preference for a butyl-based degreaser for its terrific results on the hydrocarbons that make the atmospheric dirt stick to the house surface.
When power washing with an X-Jet, you automatically dilute the cleaner at some ratio. If you have to dilute a product before you run it through your X-Jet, the math can get pretty confusing. Let's start with the basics of x-jets, and advance to Combination Ratios.
The X-Jet is simply a chemical delivery system disguised as a pressure-wash tool. While keeping you off of ladders for housewashing, it will deliver any chemical to places up to 40 feet up in the air without requiring that chemical to go through the pump, hoses, fittings, etc. The term we have coined for this is "external injection". Instead of replacing brass QC fittings in as little as three months or replacing hoses as frequently as once each year (which happens when you downstream strong cleaners) these wear items can last for years when all they ever touch is water. In the end, owners of X-Jets stay off ladders more often, save lots of money on replacement parts, and save time and labor dollars.
We even demonstrated the X-Jet for our Work Comp carrier and got our premium reduced because it indicated that we would not normally use a ladder for a housewash job.
There are two inherent difficulties to overcome when you begin using this tool, however. One of these problems is the math of double dilutions. The other is mobility while working on large areas (like washing houses).
The double dilution math problem happens when you must first dilute a concentrated cleaner before putting it through the X-Jet (which dilutes the product a second time). Some of us have a hard time with ratios and proportions and proper dilutions, and double-dilutions are doubly hard to think through.
When you use an X-Jet (and you are using detergent concentrates for their cleaning power and low cost) this can all be just too much math. Many contractors just experiment until they find a mix that works, but there is a better, more exact way to look at these complex dilutions.
Let's say you want to use Power House siding cleaner (which is so concentrated that the label advises not to use it on painted surfaces at a dilution less than 15:1). That means 15 parts water to one part detergent. With an X-Jet and this powerful cleaner, you have several options to get the desired results.
We will figure on using our 4 GPM power washer. (X-Jet proportions change according to the GPM of the equipment.) Let's also not worry too much about being exact. If we are aiming for 15 : 1 and can easily get to 16 : 1, then we just ought to accept 16 : 1 as "close enough".
Under the 4 GPM column in the X-Jet directions, we see the following:
No proportioner: 1.6 : 1
Grey 2.5 : 1
Black 5 : 1
Beige 10 : 1
Red 16 : 1
...and so on.
What options do we have? Well, we could dilute the product 10 : 1 and then run it through the X-Jet with no proportioner and get 16 : 1. Or we could just drop the X-Jet hose directly into the jug of cleaner and use the red proportioner, which delivers 16 : 1. Those two are the easy ones.
If the only proportioner I could find that day was the grey one, the math would get a little harder. In order to end up with 16 : 1 as my dilution, I would have to dilute the cleaner to some level. The math is not hard, just unfamiliar. In that case, I know that I want to deliver 15 gallons of mix for every gallon of concentrated cleaner that I use. If I use the grey proportioner (2.5 : 1) then I divide the 15 gallons that I want to end up with by the 2.5 ratio of my proportioner. That tells me that I must start out with 6 gallons of diluted cleaner - made from one gallon of my concentrated Power House. Adding 5 gallons of water to one gallon of Power House will give me 6 gallons of cleaner, which the X-Jet will further dilute to 15 gallons of cleaner with the 2.5 : 1 grey proportioner.
How many gallons of cleaner should you plan for any job? A universal number for using quality concentrated cleaners is that, in their final dilution, they will cover about 150 square feet per gallon. If the surface to be cleaned is about 3000 square feet, then you will need about 20 gallons of cleaner (3000 / 150). So, if the house we are washing has about 2400 square feet of surface area (a good typical size), we will need (2400 / 150 =) about 16 gallons of cleaner.
Let's also assume that the recipe we are going to use is the following: 1 Part Power House
+ 2 Parts 12.5% Bleach
+ 7 Parts water
= 10 Parts of cleaner
Applied with no proportioner in our X-Jet, meaning that we dilute this to 1.6 : 1, the 10 Parts of cleaner mix we start with becomes 16 Parts of cleaner applied to the surface. This is the right amount for the 2400 square foot house we used as our example.The news come from http://www.bossgoo.com/