I think BRS has some single pump dosers, if they are too fast you can just dilute the vinegar and increase the dose. I have moved away from vinegar and vodka and towards biopellets, but have yet to start them up. Before getting a doser for vinegar I would suggest perhaps investing into a biopellets system. I plan on using a TLF Phosban reactor so expect it to be pretty cheap, and less work then vinegar.
Dan
Dan
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