I've got a ten year old Pentair Legend cleaner. Other than replacing items such as swivels and floats it has worked well over the years. I have noticed both the sweep and feed line hoses are now getting really stiff. Going on line I see they want a "platinum" price for the feed line assembly. Does anyone know if another brand such as Polaris can be substituted for the Pentair feed line? They seem to be quite a bit less costly.