I bought this to use as a mop in an existing closet. All the squeegee sinks I can find have been very expensive and only have center (bottom) drains. I attached a grid to the unit and (after some difficulty) hooked up a drain and placed a faucet over it to fill the mop buckets. My suggestion is not to buy the model with the drain as they didn't care about that setup and weren't proud of it. . The 3/4 NPT hole has a plastic plug that doesn't seal on its own (if you're using it to grip an EPA drum), the hole doesn't go straight through the face (it's bent about 20º so the washers don't t-seal), and it is substantially misaligned from center. I wish I could do it myself, I was trying to save time but ended up spending more money and time on it than I could have had.