Woodchuck, leave the internal hoses alone. They are fine. They are rated for use, and we rarely have any leaks. Plus if you were to bung up something while messing with it, it is on your dime not ours. This is one of the things that is well enough, leave it alone. There are plenty of alternatives that can be adapted to the rear of the machine without unecessarily messing with the lines and fittings.