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Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 1 of 13
6.1 Parts List EPI Jet kit (See page 2 of this technical bulletin for a complete list) 1 HP Circulating Centrifugal Pump (See Tech Bulletin #17)
Please read the entire instructions before beginning the installation. Your choice of location for the jets may be influenced by the installation sequence.
6.2 Placement Considerations Determine your desired location for the four hydrotherapy jets. The attached diagram illustrates one possible configuration. The jets can be located on any of the walls of your Endless Pool® except the front. Access to the outside of the pool at the jets' location will have to be maintained both during installation, as well as after your pool is completed. The jets can be either clustered as illustrated or located remotely from one another. Because personal preference will vary, a good way to select location is to sit in a chair and measure from the seating surface to where the jet would be most comfortable on your back. Add 15” (the height of the bench). This will give you the vertical distance from the floor to the desired jet location. Determine the desired location for the jet pump. This would logically be located adjacent to the water quality system, but it does not need to be. Drainage in the pump area should be considered. The pump can use a 110 volt, 20 amp GFI Circuit (RCD protected Circuit in the UK and other countries with the same electrical requirements). The pump and controller can also be wired using 220 volt power. Your electrician should follow local codes and verify that your controller and pump are both wired for the service provided. New pumps are usually pre-wired to 220 volt service but can be quickly changed to 110 volts following the wiring diagram on the pump.
6.3 Installation Instructions 1) With the 21/2" hole saw provided, drill four holes through the galvanized pool wall in the predetermined locations. Drill one additional hole in the front panel, 4" below the center-line of the water quality system's suction line fitting (see p.5). This hole will be used for the jet suction line. All five of these holes should be drilled before the vinyl liner is installed. After the holes have been drilled, remove any burrs from the panel, and spray-paint the exposed edges with the primer paint provided. 2) With the liner installed and water cresting the benches, it is time to install the suction fitting. This fitting is installed at the same time as the thru-wall fittings for the hydraulic hoses, and the suction and return lines for the water quality system. Before cutting any holes in the liner, make certain that it fits properly and that it is correctly positioned. Find the hole through the pool wall and carefully cut a circular hole in the liner to line up with that hole. Remove the threaded nut and two of the three gaskets from the suction fitting provided. From inside the pool, insert one of the black gaskets between the vinyl liner and the pool wall. Take care to not drop this gasket as it will be difficult to retrieve. Insert that fitting through the vinyl liner, the other gasket and the pool wall. Install the cork gasket and threaded nut to back side of the fitting and tighten. This suction fitting can be capped from inside the pool using the threaded plug with O-ring provided, so that filling of the pool can continue. Take care to remove the plug in the suction fitting before operation of the hydrotherapy jets. 3) Cut lengths of the 1/2" PVC pipe for the air supply to each jet. The air pipes for the lower jets may require elbows to clear the jets and piping above. Once installed, the open top of the air supply must be sufficiently above the water line to prevent spill over. The pipe should be terminated 1/4" below the top flange of the pool panel. The 1/2" air supply tubes should be cemented to the jet bodies first, in an inverted position, with the jet internals removed, to prevent dripping of cement or primer into the air passages. 4) Apply a small bead of silicone on the back side of the jet bulkhead flange (The portion of the jet fitting with the faceplate that you see from inside the pool). Firmly press the jet gasket on to this silicone, and set it aside to let it dry. Repeat for the other three bulkheads and gaskets. Doing this will help prevent the jet gasket from squeezing out of place when the bulkhead is actually installed. Note: The jets are supplied with one gasket per fitting. The use of silicone and liquid Teflon as described in these instructions will make the jets watertight. Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 2 of 13
5) With about 15" of water in the pool (bench height), the holes can be cut through the vinyl liner for the jets. Refer to Note 2 above for cutting of the liner. Apply a bead of silicone sealant on the back side of the galvanized panel around the perimeter of the hole where contact will be made with the face of the jet body (The portion of the jet fitting that receives the plumbing). Press the jet body with air tube installed against the pool wall, aligning with the drilled hole. 6) Apply a bead of liquid Teflon completely around the threaded barrel of the jet bulkhead. Apply a small bead of silicone sealant to the gasket. Screw the face plate with the gasket and liquid Teflon into the corresponding jet body. Repeat this procedure for each of the three remaining jets. A jet tool has been included in your kit to help with the tightening of the face plates. Note: Be sure not to cross-thread the barrel as it will not seat properly. 7) Cut lengths of the flexible 11/2" PVC pipe provided to connect to each of the four jets. Flexible PVC pipe is recommended to make future service on the fittings easier as they can then be pulled away from the panel a little bit. Three 11/2" T's and one elbow should be fabricated to provide a supply piping manifold to coincide with the four jet locations (see p.6). From each of these four fittings extends 11/2" flex PVC to a union. From the unions, connect to each jet with 11/2" PVC and an elbow (lower jets use male slip-female slip street ells, upper jets use a nipple cut to length and a female slip-female slip elbow). The side of each jet opposite where the supply is connected at the bottom will require a plug. The unions allow each jet to be installed separately either before or after the supply piping manifold is assembled. 8) Cement all PVC slip connections following the cement manufacturer's recommendations. 9) Check 1/2" air supply pipes to make certain that all four are _” below the top flange of the pool wall. Extend or cut these tubes as required. 10) With the four jets and the suction fitting installed, the ball valves and remaining piping back to the jet pump can be installed. Install unions on each side of the jet pump to facilitate its removal should service ever be required (see p.6). Install the air switch at the front of the pool adjacent to the swim current switch. Should an alternate location be desired, contact our Customer Service Department for recommendations. Connect the air tubing from the front of your Endless Pool to the controller adjacent to the jet pump. 11) Before operating the hydrotherapy jets, make certain that both ball valves are open and the threaded plug in the suction fitting has been removed. In addition, remember to install the IAPMO suction strainer fitting with the female threaded/male threaded adapter. 12) Finally, you may not want to run the WQS pump and the jet pump simultaneously. Depending on sitespecific constraints, some installations may cause one of the two pumps to pull air in to the suction line if both are run at the same time. Check for air underneath the clear lid on the pumps and call our Customer Service Department with questions.
6.4 EPI Jet kit Checklist Please verify that the following plumbing parts are included in this kit: __ 1 - Round suction strainer __ 2 - 1 1/2”Ball Valves __ 4 - 1/2" 90 degree elbows __ 1 - 45 degree Female slip/Female slip elbow __ 1 - Round through wall fitting __ 2 - Female slip couplers __ 4 - Lengths of 1/2" PVC __ 1 - 2 1/2" hole saw w/ 1/4" drill bit __ 4 - Jet bodies __ 1 - Multi-Combo w/ 25’ of air tubing __ 4 - Jet nozzles __ 1 - Threaded plug __ 6 - Female slip/Female slip unions __ 1 - Can gray paint (primer) __ 1 - Female slip/FPT union __ 4 - 1 1/2”Male slip plugs __ 2 - Male slip/ Female slip elbows __ 1 - Air button __ 3 - Female slip/Female slip elbows __ 3 - 1 1/2” Tees __ 2 - Female slip/Male threaded elbows __ 1 - Jet tool __ 3 - MPT/Male slip adapter __ 4 - #11 Wing nut plugs __ 1 - FPT/MPT adapter __ 50’ air tubing w/ 2 connectors
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 3 of 13
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 4 of 13
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 5 of 13
Suction and Return Thru-wall Plumbing Connections
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 6 of 13
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 7 of 13
Diagram for use in the US and other countries with the same electrical requirements.
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 8 of 13
Diagram for use in the UK and other countries with the same electrical requirements.
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 9 of 13
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 10 of 13
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 11 of 13
Diagram for use in the US and other countries with the same electrical requirements.
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 12 of 13
Diagram for use in the UK and other countries with the same electrical requirements.
Endless Pools Inc.
11/25/2005
Hydrotherapy Jets System
Technical Bulletin
No.
6
Page 13 of 13
Endless Pools Inc.
11/25/2005
