How to repair and bleed Surge style trailer brakes

Well I finally took the boat out of storage to get some work done before spring. This time it is the trailer brakes. I have had a sneaky suspicion that they have never worked right, and after I tore into it, I we correct. The master cylinder, wheel cylinders, and bearings were all toast. So I replaced it all. That has to be one of the messiest jobs on the face of the earth, but that trailer will almost stop my truck now. It is amazing the amount of control I have towing this thing now. If your trailer brakes are not working, take the time to do this.

Altogether I am out about 200 bucks, and about 4 hours time.

Here is the first video... I will have the other one up tomorrow.