Just after a hand with something quite basic but I couldn't find the answer to.

I'm following Cybs ATB Tek ( https://wiki.dmt-nexus.m...brid_ATB_%27Salt%27_Tek )
The vessel im using is 1L as per the tek. However the tek ends up with roughly 700ml liquid and then 750ml once the naptha is added. The pipette I have is quite small and can't reach that far down into the vessel.

Will it be ok if I top up the solution with extra water to bring it closer to the 900ml mark (950ml once I add the naptha) ?
If this ok to do what is the best stage to add that extra amount of water?

Thanks everyone and sorry for the basic question. Much love.