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When you see a pump head rateing is this for output length only or both
input and output length combined? Iwaki pumps are rated at a specific gph at a 4' head. I have 3.5' from the sump to the pump and 4' on the output side to my tank. is this considered a 7.5' head or does the head rateing only apply to the output side? Could someone please explain this or maybe point me to a site or equation to make it simple. Any advice would be greatly appreciated. thanks G. |
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