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Old 11-11-2017, 01:50 PM
rotrex rotrex is offline
Senior Member
Join Date: Jan 2014
Location: Germany
Posts: 181
Default Re: Nozzle spray angle...

My Aquamist tank had a vent build into the tank cap.
Things won't separate in the liquid phase, but if you expose the tank to higher temperatures, e.g. parking in the sun in summer, the methanol will preferentially evaporate and build up a pressure in the tank. At worst, it might pop the tank.
So having a kind of a vent makes sense.

Also as mix is used, the fluid volume needs to be replaced by air in the tank. This has tom come from somewhere, hence a vent.
This is unless you run a bladder tank.
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