Deep Water Bath is a double-edged blade
I’ll admit that I’m the kind of guy that likes to take a hot bath to relax now and then. Showers are nice, but nothing relaxes tense muscles like soaking in hot water. Unfortunately some people seem to think that you only need a few measly inches of water because they tend to make tubs shallow with a large overflow drain. Thankfully, there is a solution in the form of a vinyl cover for the overflow drain.
The Deep Water Bath works by suctioning itself around the overflow drain in your tub. This allows you to have more water without it all being sucked down the drain. Unfortunately this product has an obvious downside. Since the overflow drain is covered, this means that if you start filling up the tub and forget about it, you’re guaranteed to flood your bathroom. Remember to use at your own risk! The Deep Water Bath will set you back only $5, though that’s not factoring in the cost of your potential bathroom repairs.
Source: Random Good Stuff