To use bathroom vanity tops for storage, start the pipes. Once you have taken the pipes, you will want to seal the holes in the wood of the toilet, as well as the hole in the sink to prevent your clothes, or what you are storing, from an attack of the plague. Seal the wooden holes, either with a thin small board of balsa wood nailed over the hole; cast; or tape. Since the holes are behind the vanity where nobody sees them, what seals the hole with does not matter so long, since it prevents insects and moisture from getting into the toilet.
The dresser also functions as a counter space in the kitchen. The fact that bathroom vanity tops will not pass the water does not mean it is not useful. If you have decided to use the dressing table indoors or outdoors, decorate with a painting job. Match the colors of your new environment. To paint the wood, first clean thoroughly. The water works well. Next, cover the wood with primer.
Two layers may be necessary depending on the original paint job. When the primer dries, paint over it with the color of your choice. As for the pool, do not paint. Instead, fill it with something nice. Stones or pebbles work well and contrast very well with the soft glow of the ceramic sink. Or use bathroom vanity tops of a kind of piggy bank, dropping your change to lose in it, as long as the plug is firmly sealing the hole.