HydroSnake Pack of 2 In stock Use HydroSnake when flood prevention and direction of excess water is needed. The HydroSnake has the ability to absorb up to 20 litres of water or sewage and thereafter hold back further excess. Before use the HydroSnake weighs less than half a kilo. On contact with the water the super absorbent polymer crystallises and expands to hold up to 40 times...