Dear Vikki and Frankie,
You were delightful guests, and I'm so glad you enjoyed your stay. I certainly enjoyed having you around, and look forward to seeing you again!
The 'funny smell' in the bathroom is simply explained. Using separate basins, to save water, means that the U trap is not kept full, and so the smells from the septic tank get through! The same applies to the kitchen sink. I must remember to make sure that some water is flushed down both sink and basin!
Thank you for your lovely report. I'm also missing you.