COURSE # 343 UNIT 4: ADVANTEX WASTEWATER TREATMENT SYSTEM. What you will learn in this lesson

Transcription

1 What you will learn in this lesson IN THIS LESSON, YOU WILL LEARN... Installation steps for an AdvanTex Treatment System Important inspection points for installation inspection UNIT 4-1

2 Installation Steps 1. Determine tank and AdvanTex pod position 2. Excavate site and set tank 3. Install risers and water-test tank 4. Set the AdvanTex pod 5. Install filtrate return and discharge lines 6. Install recirculating splitter valve (RSV) and float 7. Install Biotube pump package 8. Connect transport line to pod 9. Install passive air vent 10. Install control panel 11. Perform system functional test 12. Perform functional test for VeriComm control panel 13. Backfill UNIT 4-2

3 Step 1: Determine Tank and Pod Position Is it a Fully-Assembled Package (FAP) or unassembled system? Decide how to orient the filter pod The filter pod often sits on, or immediately adjacent to the tank Consider the filtrate return line for the best orientation AdvanTex AX20N installed in a less than optimum location UNIT 4-3

4 Step 2: Excavate and Set the Tank Determine the required elevation and grade requirements of the tank and AdvanTex pod before excavation The tank must be set deep enough below the pod to allow for a minimum 1/4 inch per foot slope from the outlet of the filter to the inlet of the RSV on the riser. Also, keep in mind that the top of the AdvanTex pod needs to sit 1 1/2 inches above final grade. UNIT 4-4

5 Tank Specifications All processing tanks must be either: A two-compartment recirculation (processing) tank, or A septic tank followed by a recirculation (processing) tank No vertically-aligned circular tanks Must be an Orenco fiberglass reinforced plastic (FRP) tank or a concrete tank that conforms to an Orenco-approved tank design authorized by an Orenco Dealer Must meet the tank specifications of Chapter 73, Section 31 UNIT 4-5

6 Why only Orenco FRP or Approved Concrete Tanks can crush or break if they are not structurally sound Tanks can leak in or out if they are not watertight Septic tank failure - polyethylene tank Septic tank failure - concrete tank without adequate reinforcing steel UNIT 4-6

7 High-quality concrete tank and Orenco FRP tank Quality concrete tank Quality Orenco FRP tank UNIT 4-7

8 Step 3: Install Risers and Water-test the Tank External splice box (if used) and recirculating splitter valve bracket should be installed on the riser before the riser is mounted The Orenco Dealer typically installs these components External splice box Recirculating splitter valve UNIT 4-8

9 Step 4: Set the AdvanTex Pod USING A CONCRETE TANK Prepare bedding for the filter Compact fill if placing the fi lter on the tank Install anti-fl otation flanges onto predrilled fi berglass tabs on the bottom corners of the filter Installation of anti-flotation flanges UNIT 4-9

10 What happens when you don t put the anti-flotation flanges on? AdvanTex pod floated in a high seasonal water event due to lack of anti-flotation flanges UNIT 4-10

11 Step 5: Install Filtrate Return & Discharge Lines Slope the filtrate return line at least 1/4 per foot (minimum 2 drop if less than 4 ) Orient the split-fl ow tee to the slope of the discharge line Connect the return line to one end of the tee Connect the discharge pipe to the other end of the tee UNIT 4-11

12 Pipe Grades NO!!!!! Pipe is sloped in the wrong direction Filtrate return line sloped in the wrong direction UNIT 4-12

13 Step 6: Install Recirculating Splitter Valve (RSV) Understand how the RSV works When the RSV float is seated (tank liquid level seats the float) the filtered effluent discharges When the RSV float is not seated (tank liquid level drops) in a Mode 1 configuration, all filtered effluent returns to the recirculation/processing tank. In a Mode 3 configuration, all filtrate is returned to the primary compartment of the processing tank. In Combo Mode, there is a 50/50 split of the effluent between the primary and the recirculation compartments Determine if bracket requires installation Some systems are supplied with the bracket pre-installed Note quick disconnect The quick disconnect must slide easily for removal and replacement Ensure that the disconnect bracket is not installed in a way that prevents removal and replacement Recirculating splitter valve UNIT 4-13

14 Step 6: Install RSV & Floats, continued: Determine the handle pipe length and install in the top of the RSV body Determine Float Levels The top float is normally set equal with the tank s inlet invert. The bottom float should be approximately 4 in. below the normal low operating level. For further assistance, use the diagram in the Installation Manual, Orenco document NIM-ATX-AX-1 (Appendix 3, pages 24 & 25 of the manual) to calculate stinger length and float levels UNIT 4-14

15 Step 6: Install RSV, continued: Carefully lower RSV body into bracket Push down until it is fully seated Recirculating splitter valve seated in the bracket UNIT 4-15

16 Optional Step: Install Pump (dosing) Tank or Basin A pump basin or dosing tank is used when dispersal requires pumping or dosing Contains pump, flow inducer, splice box, and discharge assembly Refer to Pump Basin installation instructions for details. Appendix 4, pages 26 & 27 of the AdvanTex Installation Manual, Orenco document NIM-ATX-AX-1. AdvanTex Treatment System flowing to a pump basin Pump basin UNIT 4-16

17 Step 7: Install Biotube Pump Package Can use internal or external splice box Attach external spice box before installing riser Note: The conduit seal is used with the internal spice box. Internal splice box External splice box For further assistance use the diagram in the AdvanTex Installation Manual, Orenco document NIM-ATX-AX-1 (pages 13 & 14 of the manual) UNIT 4-17

18 Step 7: Install Biotube Pump Package, continued: Splice boxes are watertight when installed correctly External splice box with waterproof wire nuts Cords secured out of the water and away from the pump and floats For Proper installation guidelines, refer to the AdvanTex Installation Manual, Orenco document NIM-ATX-AX-1. (pages 13 & 14 of the manual) UNIT 4-18

19 Step 7: Install Biotube Pump Package, continued: Earless vault rests on the bottom of the tank Secure the lifting rope to the splice box Biotube pump package installed Biotube pump package UNIT 4-19

20 Step 8: Connect the Transport Line to the Pod Temporarily disassemble the manifold union so that, when the pump first comes on during start-up, debris in the transport line will not be pumped into the manifold and orifices. Manifold Union AdvanTex AX20N pod UNIT 4-20

21 Step 9: Install the Passive Air Vent Use a 2-inch diameter vent line if the vent is 20 feet or less from the pod Consider locating the vent near a protective wall or under shrubbery Do not allow low points in the vent piping where water can accumulate and block the air flow Passive air vent UNIT 4-21

22 Ventilation Note: This is a poor installation. The pipe is not really buried. The vent is sitting on an old cinder block. Improper ventilation installation UNIT 4-22

23 Step 10: Install the Control Panel Use a licensed electrician for wiring Float connections Incoming power to the panel Power from the panel to the recirculation pump Power to the discharge pump, if applicable Conduit seal outside riser Note: Do not install the control panel on the wall of a bedroom, living room, or other living space. Control panel installed on post UNIT 4-23

24 Step 11: Perform System Functional Test Verify: Pump operation Filter operation The Authorized AdvanTex Service Provider will be present at start-up Temporarily disconnect the manifold union to flush any debris such as PVC shavings from the transport line UNIT 4-24

25 Step 11: Perform System Functional Test, continued: Verify the pump operation First, verify that the pump is submerged in water before continuing Test the pump operation in manual Test the pump operation in automatic using test mode Note: To enable test mode, hold the push-to-silence button on the front of the panel until the audible alarm sounds (approximately 15 seconds). Automatic/Manual switch in the control panel UNIT 4-25

26 Step 11: Perform System Functional Test, Continued: Verify fi lter operation Reconnect and hand-tighten the manifold union Hold the spring-loaded switch in manual position Open each lateral individually to flush debris Remove several orifice shields Check squirt height: 3 ft. to 5 ft. typical Record the residual head (squirt height) measurement Squirt height check on AdvanTex AX20N pod UNIT 4-26

27 Step 11: Perform System Functional Test, continued: Release the spring-loaded switch to the automatic position Fill the processing tank to one inch above the RSV cage Switch the manual/automatic switch to manual Verify proper liquid flow and drainage to and from the filter pod Verify no leaks at all plumbing joints UNIT 4-27

28 Step 12: Perform Functional Test for VeriComm Panel 1. Verify system status 2. Enable test mode 3. Perform manual pump test 4. Perform float test 5. Perform communication test 6. Disable test mode (optional) RESOURCE: VeriComm control panel For detailed procedures specific to each VeriComm model, refer to the documentation that comes with the panel. Information at UNIT 4-28

29 Step 13: Backfill When backfilling, be careful not to alter the slope of pipes. Brace the pipes or place the pipes on a compacted bed and carefully fill around them. Backfill the fi lter in maximum 12 lifts Ensure the top of the filter is a minimum of 1 to 2 above grade Slope ground away from filter Note: Before backfilling, make sure all pod and riser lids are bolted down. Failure to bolt down lids may result in deforming the pod and risers. Backfilling of AdvanTex AX20N system UNIT 4-29

30 Sampling Protocol FILTRATE SAMPLING LOCATION: RESIDENTIAL SYSTEMS Sample the discharge filtrate at the RSV Pull the RSV out of its quick disconnect bracket; lay it on a flat surface Take the sample at the RSV inlet Note: Take care not to scrape the bottle on surfaces and pick up debris. Wait for a timed pump cycle. Do not force the pump to run. Removing the recirculating splitter valve Collecting a sample at the RSV inlet for testing UNIT 4-30

31 Video Resourses PLEASE REVIEW THE FOLLOWING VIDEOS AT: AdvanTex: How it works AdvanTex Install - Part 1 AdvanTex Install - Part 2 Control Panel Install External Splice Box Install RSV Install UNIT 4-31

32 Lesson Summary IN THIS LESSON, YOU LEARNED... The important installation inspection points: Watertight tanks, connections, penetrations Only Orenco FRP tanks or concrete tanks that conform to an Orenco-approved tank design authorized by an Orenco Dealer Anti-fl otation flanges in place and properly connected Filtrate sample locations (RSV) are accessible Check all piping Proper slope No bellies in pipes Good, watertight joints UNIT 4-32

33 The important installation inspection points, continued: Check the splice box for location and connections Check the slope of the filtrate return line Check the piping to be sure it has been flushed Run functional checks The Orenco Authorized Service Provider will confi rm the 4:1 recirculation ratio based upon factory settings Make sure all riser lids are bolted down prior to leaving the site UNIT 4-33