Page History

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After allowing the cylinders to stand for a few three days, most of the precipitate settled to the bottom, but some did float as a film on the very top of the solution. Also, some Some flocs of precipitate could be seen floating throughout the solution. After three days the amount of precipitate settling to the bottom of the cylinders did not increase.
Small bubbles were observed floating to the top of the cylinder, which sometimes would attach to flocs of the precipitant. These flocs would either float to the top or stay suspended somewhere between the bottom and the top of the graduated cylinder depending on the floc size.

Results & Discussion

For the first three days, the height of precipitate in the bottom of each cylinder increased. At day four, the amount of precipitate did not increase from day three.

Using that after 3 days, no more precipitate settles out, gives a good estimate of time to wait before using the calcium hypochlorite solution. Waiting 3 days to use the solution and pouring out only the liquid at the top of solution should decrease the amount of precipitate in the system and help to eliminate clogging.