Re: Swirling or stirring - what's the difference
laboratory procedure would be to swirl or to use a magnetic stirrer while the titrant is being added. Some pool stores do use magnetic stirrers. It's just faster. If you swirl be sure to do it for 10 to 30 seconds between drops for good mixing. Manual stirring is probably not much faster, magnetic stirrers spin pretty fast and will create a vortex in the liquid similar to a blender.
Last edited by waterbear; 06-10-2006 at 08:15 PM.
Retired pool store and commercial pool maintenance guy.
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