The photographs on this site are stock and openly licensed pictures used to illustrate the guides. None of them shows a provider, a crew or a job arranged through this site.
Pexels
Most photographs come from Pexels and are used under the Pexels license.
Wikimedia Commons
These pictures come from Wikimedia Commons. Each is shown cropped and resized, and some have been lightened.
Hands peeling back the wrapped layers of a reverse osmosis membrane element: by David Shankbone, file on Wikimedia Commons, under the CC BY 3.0 license.
The end of a spiral-wound reverse osmosis membrane element, its layers rolled around a center tube: by David Shankbone, file on Wikimedia Commons, under the CC BY 3.0 license.
Labeled water sample cups in the tray of a laboratory analyzer: by IAEA Imagebank, file on Wikimedia Commons_(45919103994).jpg), under the CC BY 2.0 license.
The black and white granules from inside a household water filter: by Spinningspark, file on Wikimedia Commons, under the CC BY-SA 3.0 license.
Cross-section of a used filter membrane with sediment caught on its surface: by Piotr Pisarski, file on Wikimedia Commons, under the CC BY-SA 4.0 license.
A water filter system and its tank set inside an open kitchen sink cabinet: by Fanti Salms, file on Wikimedia Commons, under the CC BY-SA 4.0 license.
A water filter jug beside a spare replacement filter cartridge: by Smial at German Wikipedia, file on Wikimedia Commons, under the CC BY-SA 2.0 de license.
A stainless steel filter housing with a pressure gauge on top: by Agne27, file on Wikimedia Commons, under the CC BY-SA 3.0 license.
Inside an empty kitchen sink cabinet, with the drain pipes under the sink: by Tony Webster, file on Wikimedia Commons, under the CC BY 2.0 license.
A hand fitting a new brass valve with white thread tape onto a water pipe: by Tomwsulcer, file on Wikimedia Commons, released under CC0.
Supply lines, valves and drain pipes behind a sink: by 247homerescue, file on Wikimedia Commons, released under CC0.
A tall pleated membrane filter cartridge standing on its base, out of its housing: by Agne27, file on Wikimedia Commons, under the CC BY-SA 3.0 license.
Drain pipes and supply lines under a sink against white tiles: by 247homerescue, file on Wikimedia Commons, released under CC0.
Water running from a chrome bathroom tap into a white basin: by 247homerescue, file on Wikimedia Commons, released under CC0.
Blue water softening tanks and a brine tank joined by green pipes and pumps in a plant room: by Ventrovert, file on Wikimedia Commons, under the CC BY 4.0 license.