Use a mechanical tool first. It’s safer, cheaper, and better for the planet. The best unblocker tool is actually the one you use before the blockage happens.
Most people grab the toilet plunger for a shower. Don’t. You need a flat-bottomed . shower unblocker tool
But 9 times out of 10? The culprit is a big, nasty wad of your own hair. Grab a snake, hold your nose, and reclaim your dry shower floor. Use a mechanical tool first