Yes the um lip around the top etc?
It's just siliconed on for now I couldn't find gasket material and I didn't want to put a lot of time into it. The top off water goes in through the bottom the rigid tubing has a bend in it so the kalk stirs a bit on it's own as water moves through. It seems to work well. I'm not excited about the look but like I say it works so that's good enough for now.
Doug
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