Quote:
Originally Posted by wingedfish
DIY
Couple of eBay floats in series with an aqua lifter.
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I feed my rodi water directly to my sump, but through two floats (similar to yours). One is mounted slightly higher, and if the lower one malfunctions for some reason (not sure how, as they are pretty simple mechanical devices), the other will catch it. Cheap, and foolproof, IMO.