Curious, I think I am the only female to respond so far...
Is your baby going with you? If not, here is my advice. I would assume that the pumping is more to ensure milk flow remains the same. To be honest, if you can bear it, I would be prepared to dispose of the milk you pump. First, sanitation will be a major issue. Keeping all of the components clean and sanitized will difficult. Not impossible, but with an infant involved, it could be risky. Also, storage can be tricky, even with lots of kind offers, things happen. Second, your body will be taxed. Even if you take it very easy. Good nutrition can be overlooked and you need to consider that the milk you produce may not be at its best.
That being said, if you are bringing your infant, or if you must store the milk you pump, I suggest the following:
Bring your manual pump. Electric pumps are expensive and sensitive, and playa dust will be in everything. If you must bring your electric one, you can make it happen with careful protection, but why risk it if you have a manual pump.
Bring as much as possible. Disposable if you can. Those bags that you can seal and freeze are awesome. That way you don't have to worry about sanitizing bottles. If you are just storing, then you don't have to worry about sanitizing nipples. That just leaves the shields and tubes to be sanitized. Find out what type of facility you will access to. Is there a kitchen and sink and soap? If not, be prepared to mix your own sanitizing solution (google it) and also be prepared to haul out your water, in case you don't have an evap pond.
Most importantly WATCH OUT FOR YOURSELF!!! You will be more susceptible to dehydration than most. Not only must you hydrate your own body, you must double hydrate to compensate for what your milk takes. Take vitamins. Even if you normally don't, start now to get used to them. You will need all the vitamins and minerals you can get. And electrolytes with your hydration.
*Okay, guys avert your eyes* Bring moisturizer. Whether its bag balm or nipple cream or lanolin or whatever you use. Bring lots. Your skin will be dry, and cracked nipples in the desert are surely their own special type of hell.
So, in summation, things will be a little tricky, but definitely doable, and worth it. Just be prepared. I hope this helps.
Thank you!
