A. The short answer here is âUsually- yes.â A check valve is a one-way valve. It gets installed in the discharge pipe of your sump pump. When the pump runs, the water is forced out through the valve. When the pump shuts off, gravity wants the water in the discharge pipe to fall back into the sump pit.
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Yes, you can wear safety goggles over your prescription glasses. Keep in mind that not all goggles are designed to fit over prescription glasses, so make sure they're deep enough to provide enough room for your glasses. I'd also recommend an indirect-vented goggle with anti-fog lens.