Yes weed erases short term memory, if you chain smoke it like me. Thanks for mentioning diuretics. I had no idea there were tablets avaliable to induce peeing & therefore dehydration. This could be something to look into further?
FYI I do drink alot of strong black coffee alongside weed & in my lived experience that seems to have a simliar effect to diurectics (i.e. rid the body of liquid & makes me pee alot). But I say that having never taking a diurectic before (either prescribed or OTC), so I can't really say for sure. Assuming no-one comes up with a valid reason why diurectics won't work with SN, then I am tempted to try get this on prescription;
https://www.nhs.uk/medicines/furosemide/about-furosemide/
This link also mentions diurectics also rid's the body of salts as well as liquid;
Diuretics. Information from Bupa including the main types of diuretic, how they work, how to take them and potential side-effects.
www.bupa.co.uk
That is something else I forgot to mention...when peeing alot, it isn't just liquid you are expelling. It seems like your natural salts & minerals are going to. So much so, I've sometimes felt lightheaded / dizzy / about to faint after standing up from the loo.
Also if I eat say a bag of crisps after peeing for ages, I can tell my body is in desperate need for the salt intake. So another things I though about, possibly to help with the SN method....is firstly going on a salt diet in the days weeks prior, for this reason.
Alternatively how about eating lots of beef jerky / cured meats in the weeks prior to your CTB date. This is as an attempt to try & get as much SN in your system from these products / or at least get your body used to having lots of salty goodness in it....before your CTB date. Bit of a punt these last two ideas though, so no idea if it has any legs?