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2. Hot tub filter - Wikipedia

   en.wikipedia.org/wiki/Hot_tub_filter

   There are more than 500 shapes and sizes of such filter cartridges in use today. [verification needed] [1] Such cartridges can provide pre- and final filtration steps in the same cartridge, resulting in lower overall filtration and disposal costs. Cartridge filters routinely filter out particulate down to ca. 5-10 micrometres in size.

3. Swimming pool sanitation - Wikipedia

   en.wikipedia.org/wiki/Swimming_pool_sanitation

   Other filter media that have been introduced to the residential swimming pool market since 1970 include sand particles and paper type cartridge filters of 50 to 150 square feet (4.6 to 13.9 m 2) filter area arranged in a tightly packed 12" diameter x 24" long (300 mm x 600 mm) accordion-like circular cartridge. These units can be 'daisy-chained ...

4. Salt water chlorination - Wikipedia

   en.wikipedia.org/wiki/Salt_water_chlorination

   Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...

5. Free Online Games: Play board games, card games, casino ... - AOL

   www.aol.com/games

   Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.

6. In-tank toilet cleaning tablet - Wikipedia

   en.wikipedia.org/wiki/In-tank_toilet_cleaning_tablet

   In-tank toilet cleaners (also known as toilet water tablets or drop-in toilet bowl cleaners) are tablets or cartridges that add chemicals to toilet tank water to reduce toilet bowl stains. They are commonly used to prevent toilet bowl stains from calcium , limescale , mold , etc. [ 1 ] Most contain chlorine bleach as its main active ingredient ...

7. Pool frog - Wikipedia

   en.wikipedia.org/wiki/Pool_frog

   1897 sciagraph (X-ray photograph) of P. lessonae (then Rana Esculenta), from James Green & James H. Gardiner's "Sciagraphs of British Batrachians and Reptiles". The pool frog is a small frog which rarely grows to more than 8 cm (3.1 in) long, although females can grow up to 9 cm (3.5 in).