Spot-Free Rinse System

For high-rise building window and vehicle wash

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Introduction

Water treated with reverse osmosis and ion exchange systems for vehicle washes exhibits special properties - unlike normal municipal water, it doesn't leave scale deposits on vehicles when it dries. We can provide your washing facility with the materials necessary to turn it into a spot-free wash, dramatically improving your ability to clean.

 

ROTEK has been supplying RO systems for such spot-free rinse applications for the past 2 decades. Our RA series Reverse Osmosis System is the most economical match for this specific application. Moreover, we are also open to custom-made systems for special applications such as fighter jet rinse and high-speed train rinse.

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WHY DO WE NEED RO WATER FOR SPOT-FREE RINSE?

A spot-free rise differs from a standard rinse in the sense that spot-free systems use water that has been softened and/or filtered through reverse osmosis, distillation, or deionization. These processes remove contaminants and particles that can harm your vehicle, otherwise known as Total Dissolved Solids, or TDS. 

TDS can include a number of minerals and metals, such as calcium, aluminum, sodium, magnesium, nitrates, phosphates, and others. If TDS are present in the rise used during a car wash, they tend to leave behind unsightly and hard-to-remove spots after they evaporate. 

Spot-free rinses prevent spots on any vehicle, but if you already have spots, it’s important to remove them as quickly as possible.

Leaving TDS spots can lead the minerals and metals to bond to the vehicle’s exterior, causing damage to the automobile’s surface. At the very least, these minerals and metals can cause your car to appear lackluster. However, at worst, TDS can corrode the protective clear coat on your vehicle. Corrosion only gets worse over time. Eventually, the protective coat will be completely dissolved. Once that happens, your car’s actual paint finish will deteriorate.

Design Criteria

Based on the raw water quality analysis, we will provide our design suggestions follow by the 4 major treatment setup:

Filtration Systems
This section is basically responsible to filter out most of the fine particles, heavy metals, chlorine, organic matters, bacteria, color & odors. The filtration system usually consists of Clino-X Multimedia Sand Filter, Activated Carbon Filter, Water Softener, Ultra-Filtration System, Anti-Scale, and Chlorination Chemical Dosing Systems.

Purification Systems
Reverse osmosis (RO) is a water purification technology that ROTEK uses most of the time for many industries. RO can remove many types of molecules and ions from solutions and is used in both industrial processes and to produce potable water. Depending on the raw water quality, if raw water TDS is below 50ppm, then this section of the purification system may not be required as part of the design for bottled water production.

 

Remineralization Systems

Although RO removes everything from the water (including good and bad minerals),
however low mineralized water have few adverse effects:
- High corrosion potential
- Dietary deficiency causing risks of ischaemic heart and cerebrovascular disease (WHO, 2005a; WHO, 2006; Cotruvo, 2006)
The WHO recommends 10 mg/L of Magnesium and 30 mg/L of Calcium for drinking water. Therefore adding beneficial minerals to the product water is a process called demineralization. ROTEK uses natural minerals called "Camag" for adding pure Magnesium and Calcium to the product water with great improvement on the taste and pH level.

Disinfection Systems
The most common bacteria found in bottled water is Pseudomonas fluorescens, which is common in fresh-water springs. It is not considered to be a health threat until you leave the bottle open for extended periods of time and the bacteria begin to react with the carcinogens in the plastic. Reducing bacteria and microbial to the minimum is the most important issue in the bottled water production business. ROTEK disinfection system consists of UV sterilizer, Nanosilver Activated Carbon, 0.2-micron filter, and ozone disinfection. With four levels of protections, the ROTEK disinfection system will make sure the bacteria level is reduced to nil before filled to the bottle.