---
product_id: 673323536
title: "Spotless Water Systems - DIW-10B, W/Integrated Bypass | Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated"
brand: "cr spotless water systems"
price: "£442.24"
currency: GBP
in_stock: true
reviews_count: 6
category: "Cr Spotless Water Systems"
url: https://www.desertcart.co.uk/products/673323536-spotless-water-systems-diw-10b-w-integrated-bypass-simple-window
store_origin: GB
region: United Kingdom
---

# 150 gallons spot-free water capacity Dual 10-inch replaceable DI cartridges Integrated bypass for max efficiency Spotless Water Systems - DIW-10B, W/Integrated Bypass | Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated

**Brand:** cr spotless water systems
**Price:** £442.24
**Availability:** ✅ In Stock

## Summary

> ✨ Wash smarter, not harder — spot-free shine in every drop! 💦

## Quick Answers

- **What is this?** Spotless Water Systems - DIW-10B, W/Integrated Bypass | Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated by cr spotless water systems
- **How much does it cost?** £442.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/673323536-spotless-water-systems-diw-10b-w-integrated-bypass-simple-window)

## Best For

- cr spotless water systems enthusiasts

## Why This Product

- Trusted cr spotless water systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Save Time & Money:** Spend less on detailing and drying; professional-grade results without the hassle or expensive services.
- • **Spotless Every Time:** De-ionized water eliminates hard water spots—wash, rinse, and walk away with zero towel drying.
- • **Pro-Grade Portability:** Compact, rust-resistant wall mount with easy assembly and wheeled cart option for effortless mobility.
- • **Smart Integrated Bypass:** Switch filters off during wash, on for final rinse—maximize resin life and spotless results.
- • **Versatile Vehicle & Surface Care:** Perfect for cars, RVs, boats, solar panels, motorcycles, windows, and more—shine everywhere you go.

## Overview

The Spotless Water Systems DIW-10B is a portable, manual de-ionizing water system delivering up to 150 gallons of mineral-free water via dual 10-inch replaceable cartridges. Designed to eliminate hard water spots on vehicles, solar panels, and windows, it features an integrated bypass for efficient use and mounts on a rust-resistant bracket. Ideal for professionals and enthusiasts alike, it simplifies cleaning by enabling air drying without streaks or spots, saving time and money while delivering a flawless finish.

## Description

The DIW-10B provides approximately 150 gallons of mineral-free, de-ionized water based on your water input quality. It consists of two 10 inch de-ionization housings that feature replaceable and/or refillable cartridges that simply slide into the watertight tubes. The entire unit is mounted on a powder coated, rust resistant wall mounting bracket. Ships complete with All the parts and accessories needed to start rocking and rolling with All the spare time created by your CR Spotless deionized water system. It really is hard to believe that this technology has been around for so long, and we feel really bad that it took us until 2004 to bring this capability to so many folks who never knew it even existed. Deionized water dries spot-free which allows you to wash, rinse and walk away and go do fun things instead of the agonizing chore of rushing to get it dry before the sun welds spots into your paint. Our proprietary deionized water unit ships ready-to-use (well. After a quick assembly out of the box. It's a shipping thing) with All the items necessary to enjoy spot-free water the day you get the newest addition to your cleaning arsenal. The only thing missing is your 'soon-to-be' spot-free surface needing the tlc We make so incredibly easy. Garage queens, motorcycles, solar panels, windows, daily drivers, motorhomes, desert toys, Golf carts, mountain bikes and you-name-it. Anywhere spots drove you nuts, you can now enjoy the ability to wash in direct sunlight worry-free. Help make America shine.

Review: If you have $400 burning a hole in your pocket, this is the Deionizing System for you - UPDATE: After 3 months of use my TDS meter has gone from 000 to 007. I do not have a good idea of how many washes I have on the first two cartridges. I have ordered 4 more bags of resin which I think gives me 2 refills. I've also ordered an inline gallon meter so I can see exactly how many gallons between resin changes. Best I can estimate is I have about 20 car washes (2 cars) and 4 Large motorhome washes. Im assuming I'll get another couple of washes in, so maybe 30 uses and it's about $100 per recharge using CR Spotless resin. So maybe $3 per use? I'Ve been using the DI rinse pretty liberally so far. I think I'll set up a second hose for the initial wash and soap rinse off and just use the DI for a final rinse. Also need to make sure I'm not getting alge growth. I have 2 cars and a motorhome and I like washing them. They are all dark, metallic colors and I don't have a nice shady spot to wash them in. Being in Florida the sun can dry the car surface way before you can dry it by hand, leaving hard water spots that are make the car look worse than when you started. I'd been looking into building my own DI system for a while, but my time is limited and I could not find a good DYI project to copy. Another problem is that DI systems are lost in the noise of all the BS surrounding home water treatment systems which I mostly view as a scams. As usual, I figured the only way to know for sure would be to buy one, try it out and if it just doesn't work, send it back. I ordered the CR systems (the large one) which uses mixed bead deionizing cartridges. The cartridges are replaceable, or you can buy new mixed bead resin for around $40/cartridge. $80 sounds like a lot depending on how often you have to recharge your system and since I just got mine I have no idea how long these will last. Let me get the punch line out first. The system works great! I washed my Honda and Lexus and left them in the morning sun to dry. No spots at all. I washed the fender of my son's truck (dark charcoal) and rinsed it with the CR and let it dry. Then I sprayed about half of the area with normal untreated water and let that dry. See the attached picture for the results. The photo isn't great, but you can see on the left side obvious spots and nothing on the right side. The question of course is how long the systems will last before needing new resin beads. The manual says you should get between 800 and 1300 gallons per charge. We'll see. Another problem I've read about is that if you leave water in the system too long (I have no idea what "too long" means, algae grows and ruins the resin beads). Since I wash cars once a week, I'm hoping this won't be a problem. I also think the life of the beads has to do with how hard you water is and what types of contaminants are in there. I've just installed a new water softener for the house, so I'm assuming this will help increase the life between resin changes. As far as the design and construction of the system itself I'd give the manufacture an A all the way around. The unit is on a nicely built tube cart with wheels. It seems to be very well balanced and I don't think it will tip over very easily. All the parts appear well engineered and built well. The only problem is a slight leak at where you have to install the hose inlets and outlets. The manual says to put at least two wraps of teflon tape on the threads (tape is supplied, and I put 3 wraps on). But water still dribbles out of the connection a bit. I'm going to take it apart and put another wrap or two of teflon and try it again. Obviously this is an "out of the box" review with one day's use on it. I will update as I go.
Review: Great for Hot & Sunny Home/Auto Environment's - Living in a dry/hot environment, I struggled with water spots constantly drying on my car and windows before I could even reach for a towel. This water filter has been a game-changer, eliminating that issue entirely. It leaves my car and windows with a flawless, streak-free shine after air drying, saving me significant time and frustration. It's a user-friendly tool that has drastically simplified my cleaning routine. I highly recommend the wheeled version, as it can get heavy when filled with water. Professional-level results every time.

## Features

- Hard water spots can destroy your vehicle’s finish, reduce efficiency with solar panels, and create a dirty appearance on windows. We know. That’s why we created a de-ionizing system that takes out all of the minerals in your water so you can just WASH, RINSE, and WALK AWAY!
- With a CR Spotless Water System, you can let your car air dry and not leave any spots behind. Besides cars, de-ionized water is perfect for washing and SPOT-FREE rinsing of your RV, boat, golf cart, motorcycle, and house windows, too! De-ionized water is the secret sauce that detailers, car washes, and window cleaners have used for decades.
- CR Spotless was the first to make the same technology available to homeowners in an affordable, compact, and portable system. Work smarter, not harder and spend less time and money to get the same professional looking results.
- The DIW-10 provides approximately 150 gallons of mineral-free, de-ionized water based on your water input quality. It consists of two 10 inch de-ionization housings that feature replaceable (or refillable) cartridges that simply slide into the watertight tubes.
- With our integrated bypass your unit will provide more spotless water than ever before. Just turn the switch to bypass the filters during the wash process. When doing the final rinse turn on the filtration for spotless finish.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DBJ74QKL |
| Best Sellers Rank | #56,896 in Automotive ( See Top 100 in Automotive ) #49 in Car Washing Applicators |
| Brand | CR Spotless Water Systems |
| Date First Available | July 29, 2024 |
| Installation Type | Portable" or "Countertop |
| Item model number | DIW-10B. |
| Manufacturer | Spotless Water Systems. |
| Maximum Flow Rate | 2.5 Gallons Per Minute |
| Model Name | DIW-10B. |
| Package Information | Bottle |
| Power Source | Manual Operation |
| Product Dimensions | 15"L x 15"W x 25"H |
| Purification Method | Reverse Osmosis |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 810102010285 |

## Product Details

- **Brand:** CR Spotless Water Systems
- **Capacity:** 150 Gallons
- **Installation Type:** Portable" or "Countertop
- **Material:** Plastic/Resin
- **Maximum Flow Rate:** 2.5 Gallons Per Minute
- **Model Name:** DIW-10B.
- **Package Information:** Bottle
- **Power Source:** Manual Operation
- **Product Dimensions:** 15"L x 15"W x 25"H
- **Purification Method:** Reverse Osmosis

## Images

![Spotless Water Systems - DIW-10B, W/Integrated Bypass | Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated - Image 1](https://m.media-amazon.com/images/I/71PXagmGhKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you have $400 burning a hole in your pocket, this is the Deionizing System for you
*by B***B on November 15, 2015*

UPDATE: After 3 months of use my TDS meter has gone from 000 to 007. I do not have a good idea of how many washes I have on the first two cartridges. I have ordered 4 more bags of resin which I think gives me 2 refills. I've also ordered an inline gallon meter so I can see exactly how many gallons between resin changes. Best I can estimate is I have about 20 car washes (2 cars) and 4 Large motorhome washes. Im assuming I'll get another couple of washes in, so maybe 30 uses and it's about $100 per recharge using CR Spotless resin. So maybe $3 per use? I'Ve been using the DI rinse pretty liberally so far. I think I'll set up a second hose for the initial wash and soap rinse off and just use the DI for a final rinse. Also need to make sure I'm not getting alge growth. I have 2 cars and a motorhome and I like washing them. They are all dark, metallic colors and I don't have a nice shady spot to wash them in. Being in Florida the sun can dry the car surface way before you can dry it by hand, leaving hard water spots that are make the car look worse than when you started. I'd been looking into building my own DI system for a while, but my time is limited and I could not find a good DYI project to copy. Another problem is that DI systems are lost in the noise of all the BS surrounding home water treatment systems which I mostly view as a scams. As usual, I figured the only way to know for sure would be to buy one, try it out and if it just doesn't work, send it back. I ordered the CR systems (the large one) which uses mixed bead deionizing cartridges. The cartridges are replaceable, or you can buy new mixed bead resin for around $40/cartridge. $80 sounds like a lot depending on how often you have to recharge your system and since I just got mine I have no idea how long these will last. Let me get the punch line out first. The system works great! I washed my Honda and Lexus and left them in the morning sun to dry. No spots at all. I washed the fender of my son's truck (dark charcoal) and rinsed it with the CR and let it dry. Then I sprayed about half of the area with normal untreated water and let that dry. See the attached picture for the results. The photo isn't great, but you can see on the left side obvious spots and nothing on the right side. The question of course is how long the systems will last before needing new resin beads. The manual says you should get between 800 and 1300 gallons per charge. We'll see. Another problem I've read about is that if you leave water in the system too long (I have no idea what "too long" means, algae grows and ruins the resin beads). Since I wash cars once a week, I'm hoping this won't be a problem. I also think the life of the beads has to do with how hard you water is and what types of contaminants are in there. I've just installed a new water softener for the house, so I'm assuming this will help increase the life between resin changes. As far as the design and construction of the system itself I'd give the manufacture an A all the way around. The unit is on a nicely built tube cart with wheels. It seems to be very well balanced and I don't think it will tip over very easily. All the parts appear well engineered and built well. The only problem is a slight leak at where you have to install the hose inlets and outlets. The manual says to put at least two wraps of teflon tape on the threads (tape is supplied, and I put 3 wraps on). But water still dribbles out of the connection a bit. I'm going to take it apart and put another wrap or two of teflon and try it again. Obviously this is an "out of the box" review with one day's use on it. I will update as I go.

### ⭐⭐⭐⭐⭐ Great for Hot & Sunny Home/Auto Environment's
*by M***M on May 31, 2024*

Living in a dry/hot environment, I struggled with water spots constantly drying on my car and windows before I could even reach for a towel. This water filter has been a game-changer, eliminating that issue entirely. It leaves my car and windows with a flawless, streak-free shine after air drying, saving me significant time and frustration. It's a user-friendly tool that has drastically simplified my cleaning routine. I highly recommend the wheeled version, as it can get heavy when filled with water. Professional-level results every time.

### ⭐⭐⭐⭐⭐ here in the Pacific NW (Washington State) we have calcium and lime in our city water that leaves horrible hard water spots that
*by R***. on October 25, 2016*

Works exactly as advertised. Water quality (the amount of minerals in your water the filter has to remove) varies greatly around the USA, here in the Pacific NW (Washington State) we have calcium and lime in our city water that leaves horrible hard water spots that are very difficult to remove after they dry. So at a minimum you can't wash your vehicle when its warm out, certainly not in direct sunlight. Even in the shade its a race to try to towel dry before the spots form and honestly took all the enjoyment out of washing your vehicle. Then due to back and hip issues it became pretty much impossible to towel dry so I purchased a CR Spotless system. Wow it works just like they said, wash and rinse in full sunlight then just walk away and let it air dry, ZERO spots. I did adjust my water pressure to about 2 gallons flow per minute. Just timed how long it took to fill up a gallon jug, adjusted my faucet to fill it in 30 seconds. This is more than enough pressure to wash and rinse a vehicle, even thought I have a pressure washer I found no reason to use it. I did chuck the included cheap hose nozzle in the trash and purchased a nice one at my Wilco farm store. I have washed my 2016 BMW X5 xDrive 35i 4 times now, the mineralization meter still reads zero, no water spots. NOTE: My brother recently purchased one of these units to remove the minerals from the water he was mixing with coolant for his $200k Mori Seki CNC lathe.

## Frequently Bought Together

- Spotless Water Systems - DIW-10B, W/Integrated Bypass | Simple Window, Solar Panel, RV & Car Wash System, Works for All Vehicles, Motorcycles, Bikes, Boats, Planes, Yachts, Towel Drying Eliminated
- CR Spotless RC2-20 Replacement Cartridges For DIwith DIC-20
- CR Spotless R2-20 Refill Resin for DI-20 Systems, 1 Pack

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-22*