@Elaine728 Guests who do not pay for the hot tub will still use it. I have added the cleaning fee for the hot tub to my regular cleaning fee. The hot tub is emptied, scrubbed and refilled between each guest. We are on a well.
Your local zoning or health department may be able to help you with rules and signage. the following is my rental agreement language relevant to the hot tub. This is for North Carolina.
WAIVER OF LIABILITY FOR HOT TUB AND AMENITIES: Guest understands that there are special health risks that may be involved in using the hot tub, as well as safety risks using other areas of the cabin (fire pit, barbeque and firebox as examples). In particular, he or she understands that there are potential dangers that these amenities may present to children who are not carefully supervised as well as danger to any person using the hot tub if a person has health risks, is intoxicated or using any kind of drugs or medication, or if pregnant. The hot tub should be kept at a temperature that is less than 104 for personal safety. Guest agrees to explain the risks of using the amenities and hot tub to any guests at the cabin and to be fully and solely responsible for any accidents, medical conditions or injuries his or her guests may incur. Guest understands the risks discussed above and agrees that he or she will assume all responsibility for his or herself and their guests for the consequences of those risks.
Guest agrees to waive any claim whatsoever against Owner for accidents, medical conditions or claims arising from his or her own use or guests’ use of the cabin amenities or hot tub. Guest also understands and agrees that he or she is responsible and liable and will pay Owner upon request for any damages that occur to the cabin amenities and hot tub and its support equipment through his or her own or guests’ misuse and/or negligence, for example, but not limited to, using the incorrect detergents in the dishwasher or clothes washer, neglecting to extinguish all fires in the grill or fire pit, failing to replace and secure the hot tub cover, walking on or otherwise damaging the hot tub cover, or damaging the hot tub filtration system with foreign objects, soaps or oils, or causing excessive water overflow.