Pure water and window cleaning are the natural progression of the next major milestone in Window cleaning. The R/O DI systems are the future for window cleaning for buildings 4 to 5 stories and under.
There are new poles and pumps and getting DI tanks is getting easier. The best way to start out is buy a pole from a vender who will help you out by not just selling you something to make a sale but sees what your budget is and how high you need to go.
You should be able to get into the WF market for under £1,000.00 with most of that money going toward you pole and then renting a DI tank and adding a charcoal filter.
You need a TDS meter to find out what your feed water is because if it is high your DI cost will go up. If that is the case then you might want to get an RO unit to make from 1,000 to 3,000 gallons of water a day and finish it off with a DI tank.
How Does a Deionisation Tank Work
Depending on local water hardness a DI Tank (or DI Cartridge) will become saturated after a certain period of use. The resin can then be regenerated in the DI Tank almost to its full capacity making the use eco-
- Versatility, portability, compactness, user friendly
- Modular design allows you to add capacity as your needs and cash flow grow
- Optional d.i. cartridge mounts directly to frame for competence and convenience
- Use as stationary installation in your shop or mount in your trailer, van or truck
- Inlet pressure gauge monitors inlet water pressure and condition of pre filters
- Outlet pressure gauge monitors pressure to membranes
- Choose 900, 1800 or 2700 gpd (1.9 gpm) capacity
Pure Water Technology And Water Fed Poles
Several years ago, I wrote an article titled Window Cleaning In The 21st Century. In it I mentioned all of the innovations in our industry since the invention of the squeegee. Then, I got to pure water and wfps.
There is no doubt that pure water and wfps are the best thing that happened to our industry since 1936. We can clean more exterior windows in a day then ever before. And we do it safer!
When I wrote the article, there was only one manufacturer of pure water equipment in the UK (that does not include DI tanks). Now there are three. I suspect there will be more at the next trade show.
The technology is simple: Take the impurities out of the water and you get a spot free rinse. Add a wfp to that and up we go, as high as sixty feet!
So then, what does one need to jump on the technological band wagon? That is a bit more complex.
Enter TDS: Total dissolved solids, the impurities in the water.
The deionisation process removes TDS by an ion exchange. It isn’t necessary to understand the process, just like it isn’t necessary to understand how a car or a TV works. As long as they do, no problem. It is only when they quit working does a problem exist. DI will quit working rather rapidly in areas of high TDS. The good news is: there is a solution. DI resin can be regenerated. It can be a bit of a hassle for small companies, as you have to bring the tank to the re-
Multi stage filtering
This is the answer for areas of high TDS. Multi stage filtering machines remove most of the TDS before the water gets to the DI filter, leaving that filter with little to do. Obviously, the DI filter lasts a lot longer. Filters are shipped to you, so there is no down time having to shop for them. There are units to fit the needs of all users. Many of the portable units produce ½ or more gpm. It only takes ½ gpm to clean windows. Some units will run two or more poles at the same or slightly greater gpm. And there are units that large companies use to fill tanks on the trucks they send out. They produce a lot of water.
They are a bit pricey, but well worth it when you do the math.
Again there are poles for every budget and every job that they are designed to do. Carbon Fiber is the lightest, and the most expensive. Fibre glass is less expensive, but not designed to work the heights of carbon fibre. Aluminium poles are good. As in anything else, some are better then others. Some have better locking systems and are made of heavier gauge aluminium.
If you are considering stepping into the 21st century, do your homework. Look for the unit that fills your needs. Get the best you can afford. Scrimping on tools is never a good idea. Most companies have leasing plans to make it easier for you to get the right product for your needs. It would be foolish to spend your money on a DI tank if your TDS is high. If you plan to use the wfp on a regular basis, consider a good one. There is no substitute for good tools.
If you can do twice as much work in a day for one initial cost and small intermittent costs, will you make more money? Assume that you can lease a complete system (poles included) for around $450 per month. How many jobs does it take to make that payment? One, two? How many more jobs could you do in a month with the equipment. Do Ya think it pays to step into the 21st century?