Of course you can, but I would recommend that you calculate your real water needs if you have the time and the inclination, and then work out what you need to carry to (a) just make it to the next available water, and (b) what reserve you wish to have. I have previously posted on some misconceptions about the time or distances between towns on the CF
here and
here.
Personally, I prefer a bladder, and if I need to carry a reserve, carry a 750ml or 1li thin walled bottle that you can purchase at most shops, etc. I have used the 2li Source bladder for some years, which if filled to the brim carries about 2.2 li, and with a 750ml bottle means that I am carrying nearly 3li. When I last measured my water consumption (on warm day doing a bush walk here in Australia) it was about 700ml / hr, so the bladder alone will suffice for about three hours if I was staying properly hydrated. If I carry a reserve bottle, this all weighs about 160 gm, or about 55 gm/li carried.
In contrast, just on what I can see on the web, you will be carrying a Deuter Pulse (140gm) and two Nalgene 500 ml bottles (180 gm x2) or a total of nearly 500 gm for 1 li of water. Tell me I'm wrong, but you seem to be adding about 350 gm to carry 1 li less of water. Even if you used thin walled bottles (say 25 gm each) this would still be 190 gm, or an extra 30 gm and you are still carrying less water.
New pilgrims/walker need to know that the most effective way of staying hydrated is to drink freely, preferably before they get thirsty, and that one of the most effective ways of achieving that is a bladder or other arrangement where they don't have to stretch to get to their water. This is just as true on the Camino as it is in remote places. Further, they should know that they will generally be less than two hours from the next location, but over 5% of the time it will be more than that when they set out from the previous location.
If you are not going to use a bladder, there are tubing systems that can be used with normal thin walled water bottles that would seem to offer similar advantages even if you might be carrying less water overall.
Edit: corrected an arithmetic error - can't bat, can't bowl and can't add or subtract properly either!