Making coolant

I was wondering if there is a preferred way to make coolant? I need coolant to make range upgrades from the Nuclear Control addon. I need quite a few so making the coolant with 8 lapis a bucket seems too expensive, so I figured I need distilled water to reduce the cost to 1 lapis per bucket. A solar distiller is very slow, so I looked for other ways of producing the distilled water. After testing around with a Steam Generator and a Condenser I found that the Condenser will only produce enough distilled water to keep the Steam Generator filled no excess. So the Condenser is not actually supposed to be a way of producing distilled water for other use than the Steam Generator itself? Are there other ways of distilling water planned or do I simply have to set up a large amount of solar distillers to not have to wait forever?

Hadn't thought of the possibility of just running the Steam Generator with normal water. I think I might go with that option... It is kind of a manual process after all producing the 10k coolant cells, so having to replace the Steam Generator every once in a while to get rid of calcination shouldn't be too bad.

Thanks for the heads up did experience that in my test world though... So I'll be sure to look out for that