This forum generally does not recommend the use of solid Chlorine (pucks, tablets, etc) for regular use because they add multiple chemicals at the same time.
For normal, day to day chlorination the use of regular, unscented, non-splashless, bleach is recommended.
Read through the link provided in the previous post. As you have a small pool, if an issue arises you simply dump the water and start over.
Take care.