Hey Scott, does the Profilux ATO have a valve, or is it just a pump with a line on it like the Tunze? If it's like the Tunze, it will siphon if the new RO container is higher than the end of the hose. Maybe the Profilux version operates with a valve??
Maybe you can figure out adding the salt automatically by using a hopper with a scale on it? Then the system will add a certain weight of salt.
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~ Mindy
SPS fanatic.
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