Loosing Water

HI ALL,LOOKING FOR HELP , I PICKED UP A 4LT V8 1997 P38 LPG CONVERTED ON WED NIGHT, FILLED EXPANSION TANK WITH WATER AND ANTI FREEZE DROVE 140MILES HOME NO PROBLEM TEMP GAUGE FINE, CHECKED WATER LAST NIGHT GONE ,FILLED UP AGAIN DROVE TO WORK THIS MORNING CHECKED WATER GONE. FILLED UP AGAIN STARTED ENGINE WATER DISAPEARED WHERE HAS IT GONE?
MANY THANKS ANDY (I THINK SHOULD HAVE KEPT MY DIESEL ONE)

psst...probably one the floor....check yur footwells for dampness, check your hoses for leaks....check your radiator for leaks

He's right check your pasenger footwell for signs of leaks.