Find where the continuous hose is interrupted by the tip over valve, remove said valve , rejoin the hose with a plastic hose union/double hose barb, some people call them dummies because they are male on both ends of the fitting. Get the fitting at any auto parts store, usually in a bubble pack and you will find small plastic hose fittings for rubber vacuum hoses, the straight thru unobstructed one of the proper diameter to fit the ID of the hose is what you seek to eliminate the valve and remarry the line. They are sized by the shank of the hose barb, not the larger appendage on the end. Did I leave anything out?
