Blue Horizons Summerclear Algaecide\n\nCopper free algaecide for use in the prevention of algae in swimming pools.\nMaintain the pH within ideal range of 7.2-7.8 If not in this range adjust.\nProduct is compatible with chlorine, bromine and biguanide.\nPlease contact our team if you have any questions via eBay messagesCastle Hot Tubs is a well-established, trusted name in the water care industry,\nwe will do our very best to ensure that your purchasing experience with us is a pleasant one.\nIf for any reason you are not 100% happy with our service, we will put it right,\nso please contact us directly before leaving negative feedback! Thank you!\n\nPostage\n\nWe make every attempt to despatch goods as soon as payment is received.\nGoods ordered before 1pm will be sent out on the same day.\nOur couriers deliver from Monday to Friday anything ordered at weekends or bank holidays will be posted on the following working day.\nIf you require delivery to the Scottish Highlands & Islands.