AKM Spotless DI Water System for Car Wash — Pre-Filled 9.5L Resin Tank, Bypass Valve & Hose Quick Connects for Spot-Free Rinses

If you want a fast, reliable way to rinse cars, motorcycles, boats or RVs without leaving water spots, this AKM DI water system removes dissolved mineral ions so the water sheets off and evaporates cleanly. The unit arrives pre-filled with 9.5 liters of mixed-bed resin inside a robust 9"x20" FRP tank, includes hose fittings, a TDS pen for testing, and a simple bypass valve so you only use DI water where it matters.

How does the AKM system prevent water spots?

The system deionizes tap water by exchanging mineral ions in the resin, producing essentially pure water for the final rinse. Because the rinse water contains no dissolved minerals, it won't leave mineral deposits that become visible spots as water evaporates.

• Mixed-bed resin captures both cations and anions for full deionization.
• Use filtered DI water only for the final rinse to avoid wasting resin capacity.
• TDS meter shows parts-per-million so you know when the resin needs replacement.

How do I switch between regular washing and DI rinsing?

The built-in valve includes a bypass position so you can use normal garden hose flow for washing and flip to DI mode for the spot-free rinse. This conserves resin and makes the system simple to operate during a single wash session.

• Move the black handle to bypass for soaping and rinsing off heavy dirt.
• Flip to filtration/bypass off for the final, mineral-free rinse.
• No rewiring or complex plumbing—quick-connect hose fittings included.

What maintenance and refill steps are required?

AKM supplies the tank pre-filled with 9.5 liters of mixed-bed resin; when the resin is spent you replace it with AKM 10L mixed resin packs. The FRP tank is built for long-term reuse so typically only the resin needs changing, not the housing.

• Test output with the included TDS pen—high ppm indicates exhausted resin.
• Pour out used resin, refill with new mixed-bed resin, reseal and reconnect.
• PTFE tape and hose connectors are provided for a leak-free setup.

Will this fit my garden hose and vehicle needs?

The system ships with standard 3/4" garden hose quick connectors and a double female connector for common hose setups, making it compatible with most residential water supplies and pressure washers. The portable size and durable FRP tank also make it convenient for mobile detailers and backyard use.

• Includes two quick-connect 3/4" fittings and a 3/4" double female adapter.
• Compact 9"x20" FRP tank fits in trunks, garages, or RV bays.
• Pre-filled resin reduces setup time—ready to use out of the box.

Who this is for: The AKM Spotless Water System is designed for car enthusiasts, mobile detailers, RV owners, boaters and motorcycle riders who want a reliable, reusable way to achieve spot-free rinses without towels. It’s especially useful if you frequently wash vehicles outdoors with hard water and want to cut drying time while protecting clearcoat and glass. AKM provides technical support and replacement resin so the system stays functional for repeated use.