[quote=“It_s_Me, post:38, topic:49124”]
I have only ever used tap water on the rare occasion it’s been needed with plans to replace the battery and/or get the charging system corrected asap.
[/quote
Like you I am not a battery expert also like you I have only used tap water when needed maybe half a gallon over 50yr’s
RO water isn’t 98% pure, it likely was more than 99% pure before the RO filtration, sea water is 96.5% percent pure water. RO removes 98% of the impurities is what I think you meant. Essentially water is forced through a membrane with pores so tiny that only the tiny water molecules will fit through. This takes a lot of pressure and the output of the filter is a trickle. It can remove impurities that go right through a still. It can turn sea water into fresh water and filter out odors as well. A still will not remove odors from water.