Okay, I have an Ameda Purely Yours, which I've been using for almost 4 months now. Originally for occasional pumping and building a freezer stash, used at work since April 1.
Since I've been back at work, I've found that my right breast is never completely emptied, or emptied to the same degree as my left breast. This week, I have my first case of mastitis in the right breast, I had a clog for days that I just was not able to clear with hot compresses, showers, massage, nursing, pumping, etc.
I noticed that the right breast was not emptying fairly soon after returning to work, and have been doing breast compressions with no luck.
Now after doing my dual pumping session, I unplug the hose to the left breast and continue with the right breast. Even then, with breast compressions, it's still somewhat firm and I can tell there's still milk in there. I have no luck hand expressing, and always end up with milk everywhere and get myself all sticky.
So, I know a dual pump loses some suction power when both hoses are attached, but both hoses run from the same source. I've bought all new replaceable parts, including horns, valves, and hoses.
Is this just something with my breast? I'm thinking about renting a hospital-grade Medela, but since my current pump does fine with my left breast . . .
I honestly can't say if this has always been an issue, I used to use it just for pumping maybe once a day, and when my baby nurses I don't have this problem (just that now I'm missing 4-5 nursing sessions a day while I'm at work )