For your pool chlorine dispensing you can use a floating swimming pool chemical dispenser. These are called floaters. They have a polyethylene construction and are impervious to most chemicals. Each have a twist lock cap and adjustable chlorination control ring that holds six 3″ tablets or 3 pounds of 1″ tablets. Rainbow swimming pool chlorinators are a good buy because they need no special venting and have completely enclosed system. The in line feeders 320 series offer permanent installation in return line of new or existing pools or spas. You may want to get the test kits and test strips and thermometers from them as well.
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