Today I installed two ninety degree fittings on the aquahot hoses discussed above. After replacing the first hose I decided to do the second hose even though it was not kinked to the point of stopping the flow of boiler fluid. I added about three inchs of addition length to decrease the tension on the hoses as the kitchen slider moves in an out...The job took about an hour,,,Thirty dollars for the fittings and hoses, about a pint of boiler fluid was lost......