Thanks for the explanation =) I may be wrong, but I envisioned the SWF (Salt-Water-Flush) moving through quickly without much obstruction (minus the normal twists and turns) and the subsequent water only helping to move it even more quickly. Never thought about dilution / ratios. But of big note --- my SWF's worked 20 minutes after ingestion pretty regularly and I never needed to adjust the salt ratio upfront. This isn't the same for everyone, so for others, I can see the need to wait a bit before ingesting other liquids.