There are two common methods of adding chlorine to your spa, whether it is through the use of tablets or the addition of granules. Each one can be used effectively and will achieve the same outcome. The various advantages between the two types are outlined below.
Chlorine tablets vs granules
| Chlorine Tablets | Chlorine Granules | |
| Adding to hot tub | Place tablets inside a floating dispenser | Add capfuls |
| Absorption method | Variably controlled by dispenser | Granules are absorbed quicker as more surface area is exposed |
| Quantity measurement | Difficult to measure as tab will slowly dissolve at inconsistent rate | Easily measured by the capful |
| Convenience | Much easier as floating dispenser takes care of the work | Requires a consistent schedule to add chlorine to spa |
| Cost | Initial cost for floating dispenser, otherwise same | Same as tablets |
Overall we would recommend that you regularly monitor the maintenance of your spa, and keep track of the amount of chlorine that you use.