I ran across this product, and decided to buy one. I am sure others have seen and used something similar, but I figured I would share it for the masses. I have not figured out how I am going to make it work with the Dico Model 20 Coupler on my boat trailer, but I have a couple ideas. I have also ordered a second cap for the Coupler's Master Cylinder, so I can can just directly drill and tap it if I wish.

I did a lot of reading on flushing/replacing brake fluid in the past couple weeks; and it makes a lot of sense. This product allows you to do it easily and regularly by oneself.



http://www.motiveproducts.com/02bleeders.html

I saw one at the chevy shop. they work good, they would pressure it up, open up all the lines and wait, then close em off and be done.

it took more time to set it up than bleed the brakes.

I used to use a power bleeder when I worked in a service station. Easiest way to bleed brakes. Plus it keeps the master cylinder full too.
Some stations built their own from an old A/C refrigeration tank. Weld in a tube to reach the bottom, install a fluid inlet cap, a Shrader valve, fittings to attach a hose to the tube, and you have a home made power bleeder.

Modifying a cap for your master cylinder is the way to go.

i have three of those in my shop there are excellent for brake bleeding,raul