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- 13 - <br /> <br /> 3. The size of the effluent dose shall be determined by design of the <br />soil treatment unit, but in no case shall the dosing chamber be sized to provide <br />a dose of less than seventy-five (75) gallons. <br /> <br />l)OSIl~ DLr~ICE$ FOR GRAVITY DISTRIBUTION <br /> <br /> 1. A pump or siphon shall deliver the dose to the soil treatment unit <br />for gravity distribution over the soil treatment area. <br /> <br /> 2. For systems for dwellings, the dosing device shall discharge at <br />least six hundred (600) gallons per hour, but no more than two thousand seven <br />hundred (2,700) gallons per hour. <br /> <br /> 3. For other establishments, the dosing device should discharge at a <br />rate at least ten per cent (10%) greater than the water supply flow rate, but no <br />faster than the rate at which effluent will flow out of the distribution <br />device, <br /> <br /> 4. If the dosing device is a siphon, a maintenance inspection shall <br />be made every six (6) months and a report shall be filed with the <br />administrator. The siphon shall be maintained in proper operating condition. <br /> <br /> 5. If the dosing device is a pump, it shall be cast iron or bronze <br />fitted and with stainless steel screws or constructed of other sound, durable <br />and corrosion-resistant materials. <br /> <br /> 6. Where the soil treatment area is at a higher elevation than the <br />pump, sufficient dynamic head shall be provided for both the elevation <br />difference and friction loss. <br /> <br /> 7. Where the dosing device is a pump, an alarm device shall be <br />installed to warn of pump failure. For dwellings, there should be reserve <br />storage volume equal to one day's sewage flow based on the amounts specified <br />for number of bedrooms in Chapter 150.014C(3). For other establishments, <br />reserve capacity should be based on the nature of the facility, but in no case <br />shall it be less than twenty-five per cent (25%) of the daily sewage flow. <br /> <br />~O$ING B~ICES FOR PRESSURE DISTRIBUTIONS <br /> <br /> 1. The dosing device shall be a pump which is cast iron or bronze <br />fitted and with stainless steel screws or constructed of sound, durable and <br />corrosion-resistant materials. <br /> <br /> 2. The pump discharge capacity shall be at least seven and one-half <br />gallongs per minute for each 100 square feet of soil treatment area. <br /> <br /> 3. The pump discharge head shall be at least five feet greater than <br />the head required to overcome pipe friction losses and the elevation difference <br />between the pump and the distribution device. <br /> <br /> 4. The quantity of effluent delivered for each pump cycle shall be <br />no greater than 25 percent of one day's sewage flow. <br /> <br />5. An alarm device shall be installed to warn of pump failure. <br /> <br /> <br />