Hi @Patrice472 ,
is there anyway you can close off the washer with a locked door or curtain? Then give the key to seven day guests, but not others? In my experience, people have no problem with closed off spaces. But understandably feel irked if something is offered and then restricted.
I put a magnetic page protector on my washer/dryer that reads:
Big letters: “It’s no fun if you’re in a hurry and your socks won’t dry.”
Medium size lettering: “To avoid inconveniences, please follow the steps below when using our washer/dryer:”
Then list bullet points below including, “1 load per day please”, etc. Use language that puts responsibility on guest when using YOUR washer. And point out how a malfunction will affect THEM. People on vacation often forget that Household items are not for their individual use. **Magnetic page protectors (Amazon) hold a printout that can be edited if necessary.
Also, maybe switch to laundry pods? Put a bullet on the sign saying “only use provided pods in washer”. Then provide guest with one pod per day?