well the 20 psi by the pressure bleeder has just ruined your seals in your master cylinder
you should only run max the very max 10 psi thats what they reccommend
when i carry out a brake fluid flush
suck all the old b,f out of the reservoir top up with fresh one
furthest away unless its a french car
(with an assistant ie your g,f) pump the brake pedal 10 times with the nipple open then on the 10th one hold the pedal to the floor
lock nipple off then pump 2 more times seperatly ie up,down then pump pedal till hard then release thats one nipple done only 3 left
make sure you keep topping the fluid up
please correct me if i have said anything wrong cheers