How Much You Know About Water Purification? Trivia Quiz

refer to price list. This is a 50l/min POE system

A Sterilight UV system does require an electrical connection. UV systems use ultraviolet light to disinfect water by killing bacteria and viruses. In order for the system to generate the UV light, it needs to be connected to a power source. Without an electrical connection, the UV system would not be able to function and effectively treat the water. Therefore, the statement "True" is correct.

Yes, sometimes chlorine is NOT effective against some water-borne diseases. UV is very effective against most if not all such diseases. UV alters the DNA structure of a bacteria/virus thus making it inactive.

The UV lamp needs replacing because it gradually loses its effectiveness over time. Although it may still work after the recommended replacement time, it will not be at the most effective level to guarantee effectiveness in treatment.

The correct answer is VIQ-S2QDWS.

UV from Sterilight uses very liitle electricity- 2c per hour = around R15/month

304 stainless is a high quality stainless similar to high quality kitchen sinks.

UV is not a chemical process so it does nota lter the taste of water at all. It is simply UV light exposed to water. No chemicals are added.

It is a Canadian Company. Products are manufactured in Canada

Yes, 5 micron sediment filter to remove particles and a carbon filter to remove organic materials such as chlorine.

Sterilight is manufactured in Canada.

The product code for the Sterilight POE system is VIQ-SC320DWS.

The unit is supplied complete with a 2 prong plug for a normal house plug

The product is supplied complete with an adaptor to fit standard 15mm pipe

Yes, because a certain amount of UV is required per litre of water through the chamber so a higher requirement may need a larger unit. We offer non stocked units that can process many hundreds of litres per minute for large commercial applications.

a human hair is approx 75micron so this removes particles a lot smaller than human hair. A human red blood cell is about 5 micron in size. many bacteria and viruses are smaller than 5 micron and therefore UV is needed after filtering to inactivate them.

The consumer is spending R3 x 5l/day x 365 days = R5 475 per year so installing a UV system will save the client money even in the first year. The next year they save even more as they only pay then for spares. The PAYBACK of the system is less than 1 year

WE offer a wide range of high capacity UV products from Sterilight - they are specialised and require a site audit to verify how many litres/min are required and exact use. They are supplied on special order as we do not carry stock. In such cases please refer all queries to J Trubshaw ore W Wade for assistance.

That code is a POU system (cheaper)

It uses ultraviolet light to alter the structure of DNA in bacteria and viruses to make them inactive. Sterilizing water is NOT the same as filtering water - filtering water only removes particles larger than the set filter size. Sterilight does use filters before UV to remove particles.

False - as RO uses water pressure to force water through a very fine membrane it has a reduced capacity vs UV. Generally it needs a storage tank as it cannot produce enough water as the tap is turned on

VIQUA warrants the UV chamber on the Sterilight® product to be free from defects in material
and workmanship for a period of seven (7) years from the date of purchase. During this time,
VIQUA will repair or replace, at its option, any defective Sterilight® UV chamber

It is important the water pressure

Charcoal is carbon. Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. The use of special manufacturing techniques results in highly porous charcoals that have surface areas of 300-2,000 square metres per gram. These so-called active, or activated, charcoals are widely used to adsorb odorous or coloured substances from gases or liquids. ­
The word adsorb is important here. When a material adsorbs something, it attaches to it by chemical attraction. The huge surface area of activated charcoal gives it countless bonding sites. When certain chemicals pass next to the carbon surface, they attach to the surface and are trapped.
Activated charcoal is good at trapping other carbon-based impurities ("organic" chemicals), as well as things like chlorine. Many other chemicals are not attracted to carbon at all -- sodium, nitrates, etc. -- so they pass right through. This means that an activated charcoal filter will remove certain impurities while ignoring others. It also means that, once all of the bonding sites are filled, an activated charcoal filter stops working. At that point you must replace the filter.

No, a carbon filter (like those sold in retailers to fit taps) is only suitable for removing certain organic materials such as chlorine. It does not make water safe to drink.

refer to price list

UV may not be suitable without some additional pre-filtration as if the water is very unclear those particles can reflect UV light and make it less effective. In such a situation Pennyware recommends the client first conduct a water analysis that we can arrange for the client. Thereafter we can recommend additional filtration if needed.

For normal municipal tap water the pre filters should last a year and can be changed when the UV lamp is changed. For borehole water etc, depending on the water quality, 6 month change interval is better,

The given part number, VIQ-S2QDWS, corresponds to a Sterilight complete POU system. This means that the part includes all the necessary components for a point-of-use (POU) water treatment system, such as a UV lamp, a quartz sleeve, and a power supply. This system is designed to provide effective and convenient water treatment solutions for specific locations, such as under the sink or at a single tap.

The POU system has everything needed for a standard installation included in the box.

Yes, e coli is a water borne bacteria that is very effectively treated by UV - this is important in areas such as Grahamstown in the E Cape where e coli from sewage has contaminated drinking water lines due to poor maintenance practice

The key sales promotion features to close a sale when selling a Sterilight unit include the cost-saving aspect of using a UV Sterilight system compared to buying bottled water, the low running costs, the availability of a full range of spares, the high quality of the Canadian product with good guarantees, the unit's ability to effectively sterilize water and inactivate chlorine resistant bacteria, the peace of mind it provides even if municipal water quality is declining, and the ease of fitting a POU system with all necessary parts included in the unit.

It is very important that no UV lamp is operated incorrectly. UV can cause significant eye damage.

Yes, in conjunction with a specialist lab in CT we can test a water sample for around R1 000.

POU - point of USE therefore it is a small unit - 11 l / min. At that maximum flow rate sufficient UV dose is guaranteed. Above 11l/min it is possible insufficient UV dose will be achieved

The quartz glass sleeve fits inside the stainless chamber and is fitted with 2 sealing o rings - the UV lamp slides into this sleeve. the quartz sleeve ensures there is no interference with UV light transmission.

This is the basic controller function. More sophisticated controllers from Sterilight have more functionality incl measuring water quality. We sell these more to industrial applications such as food manufacturing.

Anywhere were STERILIZED water is needed

Two-Year Limited Warranty for Electrical and Hardware Components
VIQUA warrants the electrical (power supply) and hardware components to be free from defects
in material and workmanship for a period of two (2) years from the date of purchase. During this
time, VIQUA will repair or replace, at its option, any defective parts covered by the warranty.

Operating a Sterilight UV system at higher than the recommended water inlet pressure can have several negative consequences. Firstly, the UV dosing may be less effective as water will flow faster through the chamber than designed for at excessive water pressure. This means that the water may not receive a sufficient UV dose, leading to ineffective disinfection. Additionally, there is a risk of mechanical failure of connection fittings or filter housings at higher pressures, which can result in leaks or breakages. It is also mentioned that the 5 micron filter is not designed to operate at pressures higher than 5bar, further emphasizing the importance of maintaining the recommended water inlet pressure.

A POU system from Sterilight is designed to be used at a specific point of use, such as in a kitchen. It is easy to install and can be set up by the user as a DIY project. The product includes all the necessary items for installation.

A "micron" is an abbreviated term for "micrometer", or a millionth of a meter (1/1,000,000 meters). This is about .00004 inches. For Size comparison, a human red blood cell is about 5 microns across. A human hair is about 75 microns across (depending on the person). Bacteria can be between about .2 microns and 3 microns in size. Therefore the 5 micron filter removes most particles but UV sterilization is needed to inactivate bacteria and viruses less than 5 micron size

Sterilight is the brand for residential and light commercial. However please be aware we also support TrojanUV which is UV products from a sister Company of Viqua which are used to treat wastewater - eg at municipalities it is the final treatment of sewage wastewater before discharge into rivers.

The cost per litre of water used for drinking in the family for a whole year can be calculated by adding up the costs of the replacement cartridges, filter, and UV lamp and dividing it by the total litres of water used. In this case, the cost would be (R95 + R155 + R790) / (5l/day * 365 days) = R3.31 per litre. Therefore, the client would have saved money by installing the POU system, as the cost per litre is lower than the cost of buying bottled water at R5/litre. In total, the client would have saved R3,085.

The UV lamp loses around 10% of its effectiveness after a year - this happens slowly. While it will still work it is not recommended as it cannot be guaranteed to be effective. Many chinese equivalent units loose around 40% UV effectiveness after 3 months so a big difference in quality

A POE system is a larger unit compared to a POU system. It has a higher flow rate of up to 50l/min for the POU system stocked by Pennyware. It is designed to be installed to supply water to an entire house. The term POE stands for Point of Entry, indicating that the system should be fitted at the point where water enters the house, typically under a kitchen counter.

POU = point of USE
POE = point of ENTRY (whole house)