If there is disagreement, an arbitrator may be appealed to investigate and resolve the dispute. Find out who is responsible for your septic tank and make sure you operate a compliant and safe drainage system Warn tenants not to plant gardens (especially vegetable gardens) near the septic tank. Vegetables are probably contaminated with sewage. Need we say more? An overflowing septic tank will not only ruin a good party (!), the place will probably be temporarily uninhabitable. However, this depends on the number of people living in rentals, the health of the septic system and the quality of the soil. Pumping a septic tank is an important maintenance and not be left to your tenant. If your property depends on a septic system, it is important that your tenants know the Do`s and Don`ts of his company. .