this post was submitted on 21 Sep 2025
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That's actually the check valve. The store had those and more permanent PVC ones. I saw the rubber one and thought I would be really glad I went with that one whenever the pump has to be replaced.
Oh! Yeah, it will be handy for sure. My floats are finicky so I get a lot of air entrainment. Having the check below the water line lets me add a tiny hole for air to escape and correct that.