Low tablet delivery rates are caused by low flow in the skimmer dispenser at the tablet surface. Follow these steps to increase the delivery rate:
Corrective Actions:
- Open the adjustable lid to expose the tablets to more water flow. For in ground pools you may want to remove the lid entirely.
- Check the water flow in your skimmer. If you think the flow is too slow, check your filter back-pressure and circulation rate at the return jets. You may need to backwash the filter or clean the filter element. With pools that have a main drain, the flow through the skimmer can be increased by decreasing the flow from the main drain, but it's a good idea to consult your pool professional before making this kind of adjustment.
- Slow erosion can be caused by the formation of scale on the tablets. This scale is calcium carbonate, and is formed from carbon dioxide pick-up from the air during tablet storage, or by pH and Total Alkalinity (TA) being too high in the pool water. Test the water and adjust if necessary. If this is the case, simply put the tablets directly into the skimmer so they will dissolve. Remember to transfer them into the skimmer dispenser before your pump cycles off. Formation of scale is an indicator to adjust the pH and/or TA.
Preventative Follow-up:
Test your water weekly and pay particular attention to pH and Free Available Chlorine (FAC). Make additions and adjustments as needed.
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