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FreeXFall t1_jahvmro wrote

Reply to comment by Korkusuz1 in Help with connecting an Ikea double sink vanity by Korkusuz1

If it’s perfectly horizontal or even slopes a tad the wrong way, it’s not really an issue. If you don’t use it for a few days it could start to smell, but once you use it, any of the water that was sitting will flush out.

Saying that, to get a slight downward slope - cut one of the tailpieces to be slightly shorter than the other. Just a small amount is enough to give a slope. (Tailpiece goes from the metal sink drain to everything else).

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Ok_Gate_7323 t1_jalaixv wrote

Handyman I assume?

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FreeXFall t1_jalas2v wrote

No, but I take that as a huge compliment. Our first and now second house have both been fixer uppers. Lots of nights and weekends fixing or watching YouTube’s. Plumbing is something I actually really enjoy (I think it’s all the pieces so it’s like adult legos). I hate electrical though - I have large hands and just fumble with the wires.

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Ok_Gate_7323 t1_jbig2hi wrote

That is a handyman.

The reason it begins to smell is because it is not draining properly. Water will eventually make it up hill when you backpitch a pipe, but it leaves behind the gummy stuff like toothpaste, oils and soap. This sits in the backpitched pipe building up and closing off the drain. The smell is because it is decomposing right there in your drain.

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