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Salt Water Chlorine Generator for Spas, Jacuzzi, Hot Tubs & Pools Why soak in a sea of chemicals when you can improve your health and wellbeing with natural salt. Easy to use. Just plug in, no piping or installation required. The safest, chemical free system you can buy. Made in the USA. 1 Year Warranty. Uses natural salt. 90 day satisfaction guaranteed.
The Natural Choice for Safe, Clear, Sparkling Pool Water Our salt chlorination systems are sourced to suit New Zealand conditions. Systems range from economical standard 20 AMP and 30 AMP units to the advanced 'ESCpH Self Cleaning Series' with automatic pH control.
There is short but a nice article on this site http://www.enceechlor.com/technology.htm A salt water chlorinator starts with AC voltage whether it be 115 or 230v depending on where you live. then it is converted to 7v-12v dc either through electronic circuit boards or original methods, first through a dimmer (household dimmer works fine, provided it can handle an inductive load, not a resistive load) then through a step-down transformer and then through a rectifier which converts it from AC to DC and then through an Ammeter. this gives you full control over the power and shows an output of chlorine into the pool. The salt cell receives the DC power and is sent to an anode and a cathode or basically a positive and a negative plate or set of plates depending on what type of salt cell it is.
Salt water chlorination , is a process that uses dissolved salt (2,500–6,000 ppm ) as a store for the chlorination system. [ 1 ] In order to achieve this concentration, the chlorine generator (also known as salt cell, salt generator, salt chlorinator) uses electrolysis to break down approximately 200-500 pounds of salt ( NaCl ). The resulting chemical reaction eventually produces hypochlorous acid ( HCIO ), and sodium hypochlorite ( NaClO ), which are the sanitizing agents already commonly used in swimming pools. As such, a saltwater pool is not actually chlorine-free; it simply utilizes a chlorine generator instead of direct addition of chlorine.
Electronic pest control is the name given to the use of any of the several types of electrically powered devices designed to repel or eliminate pests, usually rodents or insects Numerous electronic pest control devices are readily available throughout the world. Hardware stores and garden centers usually stock some sort of electronic device advertised to repel a variety of pests and one can also find them on the internet. Although these devices have been around for at least 20 years, they have only recently become popular and widely advertised, probably due to their environmental friendliness claims. There is a wide range of opinion about these devices. Some people claim that they work for them, while others claim they are not effective at all.
Contraptions that claim to repel mosquitoes by bombarding them with high-pitched frequencies don't work, a new international study suggests. 'There was no evidence in the field studies to support any repelling effects of EMRs hence no evidence to support their promotion or use.' —Ahmadali Enayati, researcher The researchers tested manufacturers' claims that electronic mosquito repellents (EMRs) repel female mosquitoes and accordingly protect people from bites and disease such as malaria and West Nile virus.
An insect repellent is a substance applied to skin, clothing, or other surfaces which discourages insects (and arthropods in general) from landing or climbing on that surface. There are also insect repellent products available based on sound production, particularly ultrasound (inaudibly high frequency sounds). These electronic devices have been shown to have no effect as a mosquito repellent by studies done by the EPA and many universities. [ 1 ] Insect repellents help prevent and control the outbreak of insect-borne diseases such as malaria , Lyme disease , dengue fever , bubonic plague , and West Nile fever . Pest animals commonly serving as vectors for disease include the insects flea , fly , and mosquito ; and the arachnid tick .
Approximate frequency ranges corresponding to ultrasound, with rough guide of some applications Ultrasound is an oscillating sound pressure wave with a frequency greater than the upper limit of the human hearing range . Ultrasound is thus not separated from 'normal' (audible) sound based on differences in physical properties, only the fact that humans cannot hear it.
Q. Should I be able to hear any sound from this unit? A. People with good high frequency hearing may hear some of the sounds. Q. Will the ultrasonic sound penetrate through walls or flooring?
Which? is a product-testing and consumer campaigning charity with a magazine , website and various other services run by Which? Ltd (also known as the Consumers' Association , still the official name of the charity). Based in the United Kingdom, it engages in advocacy campaigns on various consumer protection issues and aims to promote informed consumer choice in the purchase of goods and services, by testing products, highlighting inferior products or services, raising awareness of consumer rights and offering independent advice. The organisation exists to make individuals as powerful as the organisations they have to deal with in their daily lives and maintains its independence by not accepting advertising or freebies.