In Need of PVC Plumbing Help Please !!

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BMR

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Jun 25, 2017
7
Ontario
I have attached a picture of a cracked union nut. I know I should replace it, but as you can see this would involve a lot of pieces and a tricky build to get it right. Do I have any options here ( Repair the nut, cut off the union and put a new one on without having to replace the whole section ).

Any help is much appreciated.

BMR



20170625_133141.jpg
 
Welcome to tfp!

Yeah this one's a little tricky. one option would be to cut off and the union and then use a ream bit to remove the pipe from inside the tee fitting and then you can put a new pipe and a new Union fitting into the existing T fitting.

Note that I'm pretty sure that the union for the T-cell is a Hayward proprietary nut so you would have to get it from Hayward.
 
The Hose Clamp would go around the nut and would run in the same direction as the crack itself. Would that provide support so that the crack does not get any worse?

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A further thought that I have had is while the crack is a bit open, to put in between it as much super glue as possible and then untighten it so that it will close up and glue the crack together. Then I was thinking of fortifying the outside of the nut with Epoxy Pool repair putty. If you look below the stairs T you can see some on the outside of the pipe.

BMR
 
Try heat! Look on YouTube on heating PVC to separate pipes and you find lots of information. I've done this several times and it's actually quite easy, but if you have an old PVC joint that you've cut off laying around, practice on that first. I'd heat the connection pipe between the tee and the union and once it's hot enough, twist it with a set of channel locks and it should come right out. You can use a hair dryer or heat gun to heat it, or coat the inside with PVC glue and light it up! I prefer to use a heat gun but a warning, it does discolor the pipe some, so heat evenly and keep the heat source moving. About 1 or two minutes and the PVC becomes very pliable.
 
They do make a split nut for repairs.

Split Nut, 2, Pump Union - 0121109020 - INYOPools.com

I don't know if the above will fit, but you can ask the seller if it would work or if they have one that will.

AutoPilot makes a repair nut for their cell union that's just a nut that has a cut so that you can open it enough to get it in place and then a clamp to hold it closed.

AutoPilot - AutoPilot - - Autopilot repair nut (Split Nut) STK0048 (1 only) STK0048

You could probably make one using a Hayward union nut.

Cut the old nut in 2 places to remove it, cut the new nut in 1 place and slip it in place. Thread on nut until it's almost completely screwed on and then install the clamp and secure the nut.

You could cut the pipe and use a pipe extender and a new union end. The pipe extender glues into the 2" pvc pipe and the union glues onto the pipe extender.
 
Had a local pool company come in and do the repair. Going to cost about $250. My only concern now is, if you look at the last valve on the left, due to the pipe not being straight up and down, I have had to really tighten the nut on the union with a belt wrench or there is a small drip leak at the union.
 

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Pool company came back and tightened the last union very tight and now it does not leak. It is so tight though that I cannot untighten it with a belt wrench. The pool company says this is ok and that the union can take this pressure. Should I be concerned ????
 

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Good point. The pool company claim they have already been here twice, Once to install and once to tighten it. They say if is just fine and there are no problems. I suspect that it is a matter of them not wanting to come back and fix, because too much trouble. I have yet to pay them for the service. I will pay, but unsure what to do in regard to insisting on a solution, as I suspect they have to rebuild the whole thing again.
 
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