After I Submit an Open House Guest..

How do I get a clean reload? It seems the prior entry is always there for the next guest.

If the form is being auto-populated when you open it on your web browser, chances are it loads the data stored in your browser's local storage.

To fix that issue, you can disable the Continue Forms Later option of your form — How-to-Enable-Auto-Fill-Feature

If you wish to redirect your form to itself after submission, you can set the FORM URL of the form as its redirect-to-link.

Where-to-Find-My-Form-URL

How-to-Redirect-Form-Respondents-to-an-External-Link-in-JotForm-Cards

I hope this helps. If, in any case, I have misunderstood your concern, please do not hesitate to let us know and give us more details about your requirements.