to two separate screw threaded apertures 31 and 32 the bleed pipe 3 is connected to one of the apertures 31 or 32 the bleed pipe is fluidly connected to the control valve to activate the control valve as disclosed in u s pat no 6 311 723 the screw threaded apertures 31 and 32 allow the bleed pipe to be connected outside or inside the fuel tank an inlet float valve 40 is housed in a lower end of the housing 20 the inlet float valve 40 is formed from an inlet float 41 and stem 42 a valve seal 43 is located adjacent the end of the stem 42 for sealing the inlet 30 an inlet float valve 40 is mounted within the housing so that the stem 42 can reciprocate between an open position in which fuel is able to pass through the bleed pipe 3 and through the inlet 30 into the fuel tank 1 and a closed position that prevents the flow of fuel through the inlet the substantially cylindrical float is supported by a seat 85 within the cylindrical housing when the inlet float valve is in the open position the seat extending across the entirely of the substantially cylindrical float and positioned such that the first hole is located below the seat and the second hole is located above the seat and wherein the substantially cylindrical float is arranged to lift away from the seat in response to liquid entering the second hole so as to move the inlet float valve from the.