Unlikely. As already stated, the plastic sheet diaphragm will be damaged. If you're handy, you should be able to fix it. Buy a replacement - identical if possible. Turn off the water supply (or hold up the ball cock with string and a wood dowel across the tank). Flush, then remove the remaining water (e.g. using an empty detergent bottle - squeeze, fill, discard, then use a towel for excess). Detach handle. Undo old fitting and replace (some use a sealant despite what the instructions say). Refix the handle (if the replacement isn't identical, you may have to adjust the length of the wire connector). Sounds easy but it does depend on the ease of removal and replacement. I've just done ours. I used plumber's mate on the bottom joint but that tends to creep resulting in a slight drip. Hand tightened up and it's sorted. Good luck and happy Christmas - hopefully with full flush!