I'm trying to find a way to install a shower at my business. There's no floor drain available, but there is a wall drain where a sink used to be. Is there a kit of some sort that utilizes a pump so that I could pump from the shower to the wall drain?
Thanks!

"Is there a kit of some sort that utilizes a pump so that I could pump from the shower to the wall drain?"

A holding tank and ejector pump is not a practical solution for what you propose. A much better and less expensive way to install your shower is to cap off the drain and break the floor up so you can connect to the sink drain.
The shower would set on the floor and the drain line and trap would be under the cement after you patched it. The up side to all this is that the shower would already be vented through the existing sink vent, (the sink is vented isn't it?)
Good luck and let me know what you decide. Tom