Skip to main content

Castle Hot Tubs 5kg Large Chlorine Tablets – 200g


Only 1 left in stock


These Chlorine Tablets are designed to slowly erode over a period of 3-5 days, depending on the water flowing over them.

These Tablets have a high chlorine content and should not be added directly to the swimming pool. Always use a clean floating dispenser (you will find them in our eBay shop) or place the tablet into the skimmer basket.



Remove plastic wrapping, if applicable, and place tablets in a floating dispenser or tablet feeder.

Never place tablets in direct contact with pool surface or in areas of still water.

Recommended dosage: Floating Dispenser – 2 tablets per 32m3 (7,000gls) of pool water. Dissolution time approximately 10-14 days.

When using a feeder/dispenser, ensure tablets used are of the same chemical (trichloroisocyanuric acid). If other materials have been used previously, wash out feeder thoroughly before adding tablets.

Check chlorine levels regularly with a Test Kit and maintain a chlorine residual of between 2-3mg/litre (ppm).


Check pH value regularly with a Test Kit and maintain a level of 7.2 to 7.6.

Close Menu