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  • Can anyone help with under sink drainage? I bought a new sink that has two dead-end fittings that look like they could attach to my dishwasher and washing machine outlet hoses. Can I just drill out the plastic and attach the hoses? Is there any problem (eg back flow possibility?) with them being opposite each other? You can see one of them clearly there


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  • back flow

    The waste hose from the washing machine should have a loop higher than the drain, iirc.

    Just don't do what I did in my old house - I connected the washing machine waste to what I though was a waste spur. Turns out it was white pvc electrical trunking. Putting waste water into the floor for quite a few weeks.

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