CleverSpa Foam Remover is designed to tackle foaming in your CleverSpa hot tub regardless of its cause, which is used to return water to a crystal-clear appearance. Foaming can also be a normal symptom of chemicals that are used to treat and keep your water healthy, which is sometimes unavoidable. *Due to the hazardous ingredients and transport restrictions, we are unable to deliver this chemical product to Northern Ireland, Scottish Highlands, Channel Islands, Isle of Man, and the Isle of Scilly.