Quay Rent-A-John and Septic Service and Portable Toilet Rental in NM. Quay Rent-A-John and Septic Service serves Eastern New Mexico. We are located in Tucumcari, NM. Quay Rent-A-John has been in business for over 25 years. We provide excellent service and quality portable toilets and septic service. We have high quality equipment for all your renta...