Hi, I need your help, I would like to flush out my cooling system with a flushing tee that you hook up to the garden hose and it flushes the system out of the top of the radiator cap, but I dont know which of the heater hoses I will have to cut to install the tee? I have done it before on cars and it would backflush thru the heater core and thru the block and up the radiator. Thanks ahead, Jim

 

I have done mine by draining the rad. leaving the lower rad hose off. Then I used a old washing machine hose, cut one end and inserted a barb fitting (5/8") I think. Pull the hose going to the core, insert barb, hook up garden hose and watch the crud run out.