The installation instructions say fit a supplied sponge gasket to rim and the fix to worktop with brackets on the underside at each corner. This is never going to pull the centre straight. I'm thinking maybe an option is to forget about the gasket and brackets and just silicone it down weighing the centre down until it drys. Or do you think I should I get a replacement from Smeg, which will be a massive hassle at this stage because the job needs to be finished already!
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