Fi-clor Swimming Pool Superfast Shock Granules 2.5kg

The shock proof chemicals cleared our (green coloured pool) approx 80% A great result but was hoping for 100%. I’m wandering if we needed to add a larger quantity!

Fine granules that dissolve quickly. Prefer it to my "recommended" spa shock. Using it to keep chlorine levels up without increasing cyanuric acid. Will need to add calcium reducer though.Should be good for the patio as well.

Very good product, cleared up a very green pool after everything else had failed

Sorted out swimming pool algae problem along with algicide - perfect for the job.

Have always used this type of shock for our hot tub, this size is good value

excellent cleans our patio lovely!

great price