This flush system always bugged me.. Mostly because most people who use them do not properly collect and dispose of the coolant (and contaminated water). If you change your coolant as needed, I have always drained the system and replaced it with 100% water. Let the car run a while (or even drive it fora day or so if the weather is warm), then drain and replace with correct 50/50 mix. Collect the coolant EVERY time you drain, and dispose of it properly.. -----Original Message----- From: edherrmann [mailto:edherrmann@xxxx] Sent: Sunday, December 30, 2001 6:19 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Cooling system flush What is the best way to flush out the cooling system. Should I just remove one of the coolant hoses. I saw an item in the store by Prestone where you can attatch an in line tee to the heater hose so you can run water from your yard hose and flush it out while running the engine. Is their another way by using the yard hose and running the engine. Thanks. Ed 10078, 16228