At DL Clean, we get asked all the time: "Why doesn't your water leave spots when it dries?" The answer lies in the science of Water Purification. To ensure our 2026 fleet delivers a 100% spot-free finish every time, we’ve moved beyond van-mounted filters to a dedicated High-Volume Static Filtration Plant.
1. The Problem: "Hard" South West Water
In our region, tap water is full of minerals like calcium and magnesium. If you spray tap water on a window and let it dry, the water evaporates, but the "rocks" stay behind as white spots. To get a perfect finish, we strip the water down to 000ppm (Parts Per Million).
2. Our 5-Stage Industrial Purification Process
By moving to a static setup, we can produce high volumes of "Ultra-Pure" water with surgical precision. Here is the professional setup behind the DL Clean brand:
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Sediment Filtration: Trapping sand, rust, and large particles at the source.
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Carbon Block: Removing chlorine and organic contaminants to protect our membranes.
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The 4040 RO Membrane: The "Engine Room" of our plant. This high-pressure Reverse Osmosis system strips away 98% of all impurities.
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Primary DI Resin Vessel: Acting as a chemical magnet to pull out remaining microscopic minerals.
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Secondary DI 'Polishing' Vessel: Our final safeguard. This twin-vessel system ensures that every drop of water entering our vans is a guaranteed 000ppm.
3. The "Hungry" Water Advantage
Once water is purified to 000ppm, it becomes "hungry." It has no minerals in it, so it actively seeks out dirt, dust, and bird mess on your glass, acting as a natural solvent. When we rinse with this pure water, it leaves nothing behind but H2O. No minerals, no soap residue—just a perfectly clear, streak-free pane.
Director’s Advice: Why 000ppm Matters
"I’ve seen plenty of setups in my 13 years, but moving to a static plant was a game-changer for DL Clean. The secret isn't just the water; it's the consistency. If your TDS meter reads even 003ppm, you’re leaving minerals on the glass. We don't settle for 'close enough'—our plant is calibrated to 000ppm every single day. For new cleaners starting out: your reputation is built on your rinse. Don't compromise on your filtration!" — Dan, Director.
Supporting the Local Trade: Pure Water Supply
Because our static plant is built for high-capacity output, we don't just use it for our own fleet. We are proud to support the local window cleaning community in Exeter and East Devon.
Are you a local window cleaner? If you are looking for a reliable source of 000ppm de-ionised water to ensure your own clients get a perfect finish, DL Clean is here to help. By supplying the trade, we help raise the standards of window cleaning across the region. Get in touch for details on our trade supply options.
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