A super strong long life winter algaecide to protect your swimming pool from algae and help keep it clear all winter long. Super Strong Long Life Winterising Pool Chemicals Polymeric quaternary ammonium chloride (>230g/1) An essential part of your winter shut down routine In our opinion, the best winteriser on the market.
This is the one we use at Oasis Swimming Pools when we close down swimming pools for winter and is the only one we sell. HTH Pool Winter Protect Winterising Liquid has been specially developed to help prevent algae and fungi growth when the pool is shut down for the winter. It can also help prevent the formation of scale and staining from dissolved minerals so the water and pool surfaces are in good order when the pool is re-opened in spring. It is compatible with all sanitisers and will not affect the pH.
Before adding the winteriser add a good dose of Shock Chlorine to help protect your pool from algae growth
HTH Winteriser dose rate in gallons (scroll down for litres);
HTH Winteriser dose rate in litres;
If the winter is mild, you can add another dose of winteriser in February.
Full instructions on how to winterise/shut down your pool for the winter are given on the container. Always follow manufacturer's instructions.