Experience relaxing spa sessions with Pro-Kleen Hot Tub and Spa Anti Foam. It instantly suppresses foam that can form in your hot tub water, giving you clear water every time. The anti-foam has a unique formula that effectively neutralises surfactants in your hot tub, preventing foam from appearing altogether. Pack size: 5L. Usage: Just add two capfuls to your spa water and watch that foam melt away! Foam isn’t just annoying; it can cause unsightly water lines all over the surface of your hot tub. If you get rid of foam, you’ll also get rid of those water lines, meaning your regular hot tub cleaning sessions will be so much easier. Just two capfuls of anti-foam are enough to suppress any foam in your hot tub. It also has a long-lasting effect, so it keeps your water clear for longer.