The Unger HydroPower Ultra Small DI tank delivers spot-free pure water for window cleaning, solar panel rinsing, and fleet washing without ladders or detergent. Window cleaning contractors and facility managers use it in line with a water-fed pole to produce 0 ppm purified water on demand, eliminating mineral spotting and the squeegee+scrim labor that goes with traditional cleaning.
Use Cases
- Storefront and high-rise window cleaning with water-fed poles, no ladders required
- Solar panel cleaning where mineral spotting reduces panel efficiency
- Fleet, RV, and boat washing where spot-free rinses replace hand-drying
- Greenhouse glass and atrium cleaning for facilities and property managers
- Quick-deploy contract cleaning where a portable DI tank beats trailer-mounted RO/DI rigs
How It Works
Tap water enters the tank, passes through a bed of mixed-bed deionization resin, and exits as 0 ppm pure water ready for your water-fed pole. The Ultra Small is the most portable model in the HydroPower family - ideal for techs working out of a van who don't need the throughput of the M or L tanks. Resin life depends on incoming water TDS; many users get 25 to 50 average storefronts per resin charge in moderate-hardness areas.
Specifications
- Resin volume: small/portable form factor (S size in the HydroPower line)
- Output: 0 ppm pure water with fresh resin
- Inlet/outlet quick-connects compatible with standard Unger HydroPower hoses
- Built-in TDS meter port for real-time water quality monitoring
- Refillable with virgin or regenerated mixed-bed DI resin
Frequently Asked Questions
Do I need a separate RO system with this tank?
Not necessarily. In areas with low to moderate TDS (under ~150 ppm), a DI-only setup is the most cost-effective path to pure water. In high-TDS regions (above 250 ppm), pairing the DI tank with an RO membrane upstream dramatically extends resin life and is usually the better long-term economics.
How often will I need to replace the resin?
Resin exhaustion depends on incoming TDS, total gallons used, and how aggressively you push the system. Most contractors cleaning storefronts in average city water see anywhere from a single day to a full week of work per resin charge. Use a TDS meter at the outlet to swap resin once readings climb above 10 ppm for spot-free results.
Is this compatible with non-Unger water-fed poles?
Yes. The HydroPower Ultra uses standard quick-connect fittings, so it will run any water-fed pole brand with matching inlet hose. Most window cleaners run it with their existing carbon-fiber or hybrid pole.
Can the tank handle hard water without burning resin too fast?
It can, but resin life shortens proportionally to TDS. If your tap water exceeds 200 ppm, expect noticeably faster exhaustion - that is when adding an RO pre-stage pays for itself. The Ultra is sized for portability, not high-volume hard-water work.
As an authorized Unger dealer, Discount Cleaning Products stocks the full HydroPower line - Ultra Small, M, L, and replacement resin - so you can scale your system as your route grows. Our US-based customer service team helps window cleaning contractors size the right tank-and-pole combo for their water conditions.
