This is the Waterpik I use.

I also used an electric one that fills up water.

The water pressure isn't as strong as I thought.

Then, during the holidays, I saw someone at my older brother's house connecting it directly to the faucet, so I bought one right away.

This is really good.

The yellow part at the front is replaceable so each family member can use it separately, but we are a family, you know.

I wipe it clean before using it, but I just use it as is.