Water Filters - How do they work


Water filters how do they work? Water is good at dissolving things. All of our water constantly circulates through the environment in what's known as the water cycle. One minute it's rushing through a river or drifting high in a cloud, the next it's streaming from your faucet (tap), sitting in a glass on your table, or flushing down your toilet. How do you know the water you're about to drink hasn't picked up all kinds of contamination on its journey to your home? If you want to be sure, you can run it through a water filter.


Salt water chlorination is a process that uses dissolved salt as a store for the chlorination system. The chlorine generator (also known as salt cell, salt generator, salt chlorinator or SWG) uses electrolysis in the presence of dissolved salt (NaCl) to produce hypochlorous acid (HClO) 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.

3 reasons to use Always Plumbing


Local Company Serving Local People

Always Plumbing is a local company based in London Colney, St Albans in Hertfordshire with over 30 years experience in the trade, from small jobs to the more complex domestic jobs.

Based in St Albans

The company is based in London Colney St Albans and covers all of Herts, Beds and Bucks as well as London. We have a highly trained team of plumbers and central heating engineers that will make sure your plumbing, boiler or service required is maintained to the highest standard.

All Safe (formerly CORGI) gas engineers

Always Plumbing is your one-call service for all your plumbing and heating needs in your local area, With highly trained plumbers and All Safe (formerly CORGI) gas engineers we will respond quickly to any emergency.

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