Hello Guest

Our Northfleet depot is now open for collections.

Social distancing and safety measures are in place. Please check your receipt email for further details.

Read our Covid-19 message

Shock Top 250g Stabilised Chlorine Tablets (Replacement For BiLayer 2 Phase) - 5kgs

More Views

Shock Top 250g Stabilised Chlorine Tablets (Replacement For BiLayer 2 Phase) - 5kgs
Excl. Tax: £33.96 Incl. Tax: £40.75

Availability: In stock

Shock Top Chlorine Tablets 250g (5 Kgs - 20 x 250g tablets)

With this product, you earn 122 loyalty point(s).



Blue Horizons 250g Shock Top Tblets are designed to provide both fast dissolving shock (blue) followed by longer term disinfection (white) over a period of 6 – 10 days depending on water flowing over them. They also contain both algacide and clarifier

Ideal free chlorine range: 1 - 3mg/l (ppm)

Prior to using this product, adjust the pH levels to the ideal range of 7.2 – 7.6.

Application Instructions

Skimmer:  Initial Dose: Place 2 tablets in a clean & empty skimmer basket per 22,725 litres (5,000 gallons) of pool water. Routine Dose: Place 1 tablet in a clean & empty skimmer basked per 22,725 litres (5,000 gallons) of pool water every 6 - 10 days. 

Floating Dispenser : Place tablet(s) in a floating dispenser and adjust the aperture mechanism at the bottom of the dispenser to obtain the ideal chlorine range of 1-3mg/l (ppm). The dispenser should be removed from the pool while swimmers are bathing. 

Chlorine Feeders: Not suitable for this application.

Note: It is recommended that you periodically (e.g. weekly/fortnightly) shock or oxidise your water with liquid shock or granular shock.

Additional Information

Additional Information

Corrosive Substance No
This site uses cookies. By continuing to browse this site you are agreeing to our use of cookies. Find out more here.