I'm installing a replacement holding tank. The output of the tank is on the bottom. Standard 1 1/2 " barbs, etc. I want to put a diverter valve right after the output of the tank so I can direct the sewage to a macerator, then to a thru-hull for direct discharge (where allowed)...or...direct the flow to a deck pump out when in a marina. The question is regarding the height of the diverter valve in relation to the holding tank outlet. Would it work if the diverter valve was located at the same height as the top of the holding tank? Or do I rely on gravity and have to locate the diverter valve at the lowest possible location? Ideally, I would like to mount the diverter valve on a bulkhead as opposed to the bilge (there is no way to locate the valve lower than the holding tank outlet). Any thoughts, advise, or experience is appriciated.
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