SWIM gets these precipitates every single time, regardless of wether he uses vinegar or HCL, they are a pain in the ass and the only thing you can do is wait. After 12-24 hours the precips will end up sitting between the limo and water layer, its then easy to pull out the water.

Since Ron never came across these, and a lot of other people didnt either SWIM thinks its just down to the limonene or calcium hydroxide. Must be a difference in purity of either of those two things. SWIMs calcium hydroxide is super super fine, and some of it does seem to be soluble in water, perhaps it makes its way into the limonene and turns into a salt upon hitting acid, either that or there are some strange impurities in SWIMs limonene.

n.b. SWIM has tried extremely dilute hcl and vinegar but he still gets these precips.

just give them time, and they will seperate