Failed SPE test

I just had my 16 week re testing and I got an email saying I was deferred for 2 weeks because I had high protein levels. They said it's usually caused by not drinking enough water before donating. The thing is I drink tons of water. Other than 1 cup of coffee in the morning it's all I drink

Additionally I generally have lower protein levels during screening. The highest I've ever gotten is 7.0.

What can I do to lower my protein levels before the next test on the 30th?