Question: I am having a pool built and noticed that there are two round brackets in the floor of the pool. My neighbor told me they are main drains. His pool, built three years ago, has only one ma… ...

The device, called The Main Drain, even allows people to sit on the lavatory while it's connected. Dan Garvin, 27, admitted he came up with the idea for the invention a long time ago.

Question: My friend just had a pool built. Her pool and attached spa each have two main drains. I asked her whether she knew why there were two drains. She said the pool builder told her it was req… ...