yeah some times as photographers we tend to make things more difficult than they are. If you stop to thnk for a moment, in the 18 and early 1900's they did not use special brushes, or have destilled water for their solutions and I am sure the refining techniques for pt and pd were not up to todays standards, yet they managed to make wonderful prints.

I am sure using destilled water is a good practice, but I have been using tap water since I moved to mexico to mix ALL the solutions, and have not noticed one bit of a difference from when I used destilled water.