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|   I will wait patiently, as I currently use large Masterflex dosers in various sizes for the bulk of my dosing.  These dosers are great for large volumes, the IP series I use for water change is measured in liters per hour.  I am just needing the resolution of much smaller doses that the GHL is giving me. Running two separate but not separate systems, means I almost need twice as many of everything. The compact size is great as well. Thanks again, and looking forward to the release of the Slave units |