I have used 2 Qts water with 25 drops 35% H202 and have had good results (did not try to hold this long)
I'm sure you can use one qt. water, and start adding drops slowly to make sure it's not too strong & position yourself for higher distribution. Also there is Volinskys mention of 40 drops to consider, I could tell 25 drops/2 qts. was my personal limit (tried 28 drops and could barely hold it)..
I'm just embarking on the Miracle-Mineral-Supplement approach...Awesome so far. Will be looking into the enemas.