PUREWASH™ Ultra Pure Water Cleaning Systems - designed to make cleaning Windows, Vehicles, and Boats much easier, safer and more cost effective than traditional methods.

We've been doing this a while and usually get asked the same questions, so compiled below are the answers. If there's something not mentioned here then feel free to get in touch with us to discuss.

TDS- stands for total dissolved solids. This is the accumulation of minerals measured in Parts Per Million or PPM in your tap water. In NZ our typical water quality ranges from 50- 80 PPM. Below is a picture of the meter that takes the reading of the water quality and is sold with every PUREWASH System.

Deionized water is water that has had almost all of its mineral ions removed. We can remove all these minerals that cause water spots through a process of filtration called ion exchange. Its a method that has been around for a long time most often used by laboratories to produce purified water on demand and other industries from medical through to skin care.

The end result is purified water that won’t leave mineral deposits – water spots – on your car or windows! The bottom line is that a PUREWASH™ system is a blend of filtration and deionization which gets the best results in the industry for spot free cleaning.

Sediment filters are designed to remove suspended solids, which are also known as sediment, turbidity, or particulate. A sediment filter essentially functions like a net that catches unwanted dirt particles as your water flows through the system. Water can contain all sorts of sediment from rust to insects, dirt, algae and bits of washed in plant matter.

Sediment filters have a limited function. Only sediment that will become trapped in the bed of natural media is removed. Trace pathogen elements, heavy metals, and volatile organic compounds can still remain in the water. Sediment filters are particularly beneficial when working in rural areas (well water) and are a cheaper alternative than the carbon filters for this purpose.

Carbon filters remove sediment but they also remove chlorine, volatile organic compounds (VOCs), odors and unpleasant tastes from water. Carbon filters contain activated carbon, which is made through a special manufacturing process that creates more bonding sites. As water passes through a carbon filter, impurities like VOCs and heavy metals become chemically bonded to the carbon. As the water works its way through the filter, a lot of unwanted impurities will become stuck to the carbon bonding sites and the water will leave the filter much more pure than it came in.

Carbon filters are effective at removing the impurities that bond to carbon. Not all impurities do. Sodium, for example, is able to pass directly through carbon filters without being removed.

’PUREWASH™ Systems can provide spot free vehicle and window cleaning with zero environmental impact. Tap water goes through a process which de-ionises the water and removes all impurities that normally cause ‘water spotting’. PUREWASH™ systems' has all these minerals removed so there is nothing left to spot when pure water evaporates. Its even more pure than rain water!

• Window Cleaning, Domestic and Commercial
• Vehicle Rinsing, Vehicle Groomers
• Boats & Personal Water Craft
• Building Washing, Property Maintenance Companies
• Pharmaceutical & Laboratory Applications and many more…

Please note Deionized Water is not suitable for drinking purposes.

As the water passes through the filter(s), all the spot causing calciums and minerals in the water cling to the resin beads and the purified water continues on to provide spot free water.

We recommend replacing the filter when the TDS meter reads above 20 ppm.

Deionized water systems produce 0-3 ppm water which is physically impossible to leave any spot-inducing residues on your work surface. Filter expiration characteristics are primarily dependent on your local water quality (higher flow rates/resin age can also contribute) and may produce work surface damage above 20 ppm. Nearly every one of our customers do not experience any spots/damage between 1-10 ppm and the vast majority of our customers do not experience spots/damage between 10-20 ppm.

Use above 20 ppm may cause damage to your work surface.

Use above 20 ppm may cause damage to your work surface due to a rapid decrease in pH.

You must test your system above 0 ppm with your local water source on a test surface to determine your system’s expiration characteristics.

Some well water users have experienced adverse results when using the system downstream of iron removers and/or water softeners. It is best to use the system with your well water before it passes through any stripper/softener and do not use if your PUREWASH™ unit TDS meter reads any number above 0 (typical resin life exhibits 000 ppm through approximately 90ppm.

Softened water (potassium or sodium based) will not extend the life of the resin. The TDS count of the water coming out of the water softener will be (more or less) the same as the water going into your softener and may damage your work surface in cases with high levels of total dissolved solids in the supply water.

No, it will not remove your wax and the best part is that you do not have to worry about tiny scratches caused by drying with a towel or chamois!

Yes, it is possible. After long periods of non-use there is a possibility that algae can form and foul the resin. If it is going to sit for a long period of time without use (60-90 days) we suggest that you remove the resin cartridges, allow them to drip dry and dry the inside of the blue housings to prevent algae growth.

No, you don’t need to use a special soap to achieve spotless results using our systems. Just use your normal soap and make sure you rinse thoroughly wherever soapy water can be trapped. Be mindful of soapy or contaminated water that can get trapped in places and displaced by our *spot-free* water, only to land on a spot you’ve already rinsed! Rinse and rinse again is often a good idea in problem areas.

No, please do not drink the water. Deionized water produced by our system is not meant for human consumption and has no nutritional value.

No, it can harm some of your interior household plumbing.

Check that the ball valves are not in the shut off position. Sometimes you may have to check whether the tap is turned on also! ( you will be surprised how many people will make this error) Make sure that the water is going through the system via IN - OUT direction flow. Plugging the system in reverse may not flow any water and block up the system with Resin. If this happens,  unplug thew system and clean the inlet outlets to be sure of good flow.

The tank housings are rated at 140 psi maximum and the unit is leak-tested to handle this amount of pressure. Typical residential regulators reduce pressure to 65psi and both your Spotless Water unit (and your house) may be in jeopardy if operated above 140psi. 

Yes, the resin has a shelf life of approximately 12 months before it will start to lose effectiveness.

Between use make sure that the unit is sealed on the inlet and outlet ports from air to the system. Failure to store system in this way will reduce shelf life of the PUREWASH™ system making spot free water.

Rats! We hate it when that happens…it’s why we created the system in the first place! Assuming those spots weren’t already there (ahem…our system only keeps them from forming; it does not remove them), this could be due to a few issues.

The primary causal factor is letting the work surface dry outdoors when ‘stuff’ is floating in the air and lands on the drying water causing a ‘dust ring’. Airborne pollen and neighbours with yard blowers are the bane of *spotless* existence so keep an eye (and ear!) out for these contaminant sources. (A windy day is going to carry dust in the air).

Another causal factor could be that the output hose you’re using is old…and probably a 50 footer. Over time, hoses will absorb minerals and the first thing deionized water wants to do is collect ’em up and (unfortunately) carry them out the business end of the hose and onto your work surface. As long as your meter is reading 0, the only thing coming out the business end of the system is hydrogen & oxygen so be sure you’re not donating any unnecessary minerals to your spot-free water. A new hose should solve the problem.

Another reason may be that you’re rinsing away pockets of soapy water and some of that is getting bounced onto areas you’ve already rinsed off. Don’t use more water than you have to, but it is necessary to remove all soapy and/or ‘dirty’ water to enjoy the *spot-free* capability we designed into the system.

Yes! A domestic water blaster draws approximately 5-10 litres of spot free water through the system. This is a great idea to rinse off the soap off your car quickly or to maintain your vehicles appearance on a frequent basis without the need to scrub or chamois. Using a water blaster will get the job done quicker!

 Using a water blaster is twice as effective as a ‘water broom’, a spray nozzle to blast contaminants off flat surfaces a lot quicker than a standard hose nozzle.

RAINMAKER 5L- 8-12 Litres per minute

RAINMAKER 10L-14-18 Litres per minute

ALTO 5L- 8-12 Litre per minute

ALTO 10L 14-18 Litres per minute

NIMBUS 10- 14-18 Litres per minute

NIMBUS 15- 20-25 litres per minute

Yes. Make sure the system is sealed by ball valves. For extra water tightness use the supplied hose on outlet and inlet ports to seal the system also. The usual checks apply to tying down the system so it doesn’t bounce around. The responsibility is your’s not PUREWASH™.

Houses running off municipal water supplies will have a regulated water pressure that is safe for the PUREWASH™ system. Depending on what model system you have will determine the pressure your PUREWASH™ system can handle. If your system has a pre- filter it will be  rated at 90 psi and the resin tank is rated at 150 psi. Make sure that you don’t use your system if you are going to run over 80 psi as a precaution or install a reducer valve if a high pressure pump is being used.