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I found the manual for the pump. It is a Myers 3/4 HP J711P installed in 1990. According to the manual the top of the pump has a check valve on it. There is also a brass colored cylindrical shaped item before the holding tank, I assume this is a check valve too?
I have no idea how far down the pump is. What kind of pipe do they typically use and is it in 10' sections? I have 1 glass block in my concrete back stoop that must be removed to get the pipe up, how would a glass block seal in concrete though?
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