Ultimate Snow Foam
Price: £13.65 Capacity: 5 litres
Allowing time for the shampoo to soak pays off with this top performer. Like the Bilt-Hamber, the Ultimate needs to be left to work its magic. After five minutes, you rinse with the power washer, and watch the grime fall off. Snow Foam left the least for our wash mitt and sponge here, so it’s a worthy winner.
