Repairing a Pump Discharge Leak

Posted on: March 22, 2017 by in Plumbing Videos
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Repairing a Pump Discharge Leak


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I already had re-plumbed the pump inlet last week so this is how you do the pump discharge line that sits above the pump. You would plumb both the same way.
TO SEE THE NEW VERSION OF THIS REPAIR WITH HIGH HEAT NIPPLE PIPE:
Repairing A Pump Discharge Leak Updated & Revised Version: http://youtu.be/o5V6P0IQpM4

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NOTES:
This is not a very difficult job, but it does require accurate measurements for the pipes to fit together. The last pipe fitting you do will be the most difficult as that will be the one that will make a complete sealed plumbing. Please plan accordingly so you will be able to fit it on. In this video I was able to move the pump back about 1 inch and slide the last pipe on, then I pushed the pump back completing the plumbing seal. It takes some practice but you can do it. If you make a mistake, simply cut out the pipe or use a new pipe and new fittings. The pipe fittings are not very expensive. All the material for this job will cost you about -. Just by extra fittings in case you make an error in your cutting or measuring.

Parts list:
2″ MALE ADAPTER THREADED FITTING (for top of pump)
For a better heat rating you can use this pipe also:
2″ x 12″ nipple cpvc pipe (grey) and rated to 140 degrees
2″ SLIP COUPLING
2″ PVC PIPE 5 FT
2″ SLIP 90 DEGREE ELBOWS
2″ FITTING EXTENDER
POOL-TITE GLUE .5PT
Plasto-Joint Stick Thread Sealant 1.25oz 11775 for threaded fitting on top of pump
You can also use plumbers tape

Of course if your pool has 1 ½” pipes adjust the fitting size accordingly.

Pool-Tite Glue Instructions:
Shake can well. Use a primer to clean the pipe fittings (priming step is not needed for non-pressure pipes less than 4″ in diameter. Apply liberal coat of cement to pipe depth of the socket, leave no uncoated surface. Apply a thin coat inside if the fitting, avoid puddling, Apply a second coat to the pipe. Assemble parts Quickly. Cement must be fluid. If cement surface has dried recoat both parts. Push pipe firmly into fitting giving it a ¼ turning motion. Hold pipe and fitting together for 30 seconds to avoid it popping out. Glue can get old so if it is gel like don’t use it.

You can use the Purple primer or the clear one to prep the pipes. The Purple primer has a very strong dye in it so if you drip it won’t come off, so the clear one is less messy.

Sometimes the pump itself will have warped a bit from the heat. In that case the 2″ x 12″ nipple cpvc pipe will sometimes seal it better.

Here is a look at the pipe online –
http://www.grainger.com/Grainger/GF-PIPING-SYSTEMS-Pipe-Nipple-6MW40

You will just have to cut it down to size and then do the repair accordingly.

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