This Aint News

So, I want to do a tranny flush. I've been reading that the "Power Flushers" (Flushing Machines) are sometimes bad for transmissions because they move fine debris into points of contact that can cause damage to the tranny. So I was thinking of using an old backyard trick I read about.

It involves removing the fluid return line of the tranny into the area of the engine where it passes by the coolant, plugging a garden hose or something that will fit over it and placing the hose into a huge can, like a trash can. They then explained that you need to throw in your funnel into your tranny fill (my car only has a dipstick, no tranny fill area, it's probably underneath). i was thinking of getting a crank syphon and putting the tube in the dip stick neck. They then say to start your car, put it in neutral, and start dumping tranny fluid in hopefully as fast as it is coming out into the trash can. Once it starts turning pink it's good to go and you can shut everything down. Close everything up, check levels, and top up as necessary. I've already done a pan drop and replaced the filter, but I want to get all the fluid out of the torque converter. I don't care that I've wasted 5L on the pan drop already, i just want brand new fluid all around.

Whaddya think of this methodology? Could I damage my tranny really bad doing it this way... my fears are that the dip stick "pipe" is too small to adequately take as much fluid as the tranny dumps out (that's why I thought of the syphon, push it in farther than the pipe, and start cranking as fast as I can).

If the machine flushers are safe, would it just be worth my time to take it to a mr. lube and have them do it for 129.99? They can probably drop the price because I have a brand new gasket on my pan and new filtre in already.