The i-spraywash system is a plug & play foam system with integrated dosing feature. It has a special nozzle that creates an active foam that really sticks to the surface. All you need is a water hose and the right i-spraywash tab and you're ready to go. The GARDENA Tap Adaptor for Indoor Taps allows you to connect a GARDENA hose and fittings to an indoor tap, such as those found in kitchens, laundry rooms or bathrooms.