1" coupling for repeated connect/disconnect


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Old 05-24-16, 06:47 AM
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1" coupling for repeated connect/disconnect

I'm installing a water pump with 1" fpt on both intake and discharge. It'll only be used during the warmer months, and the location is a bit exposed, so I'd like to be able to easily remove it in the fall and re-install it each spring.

What sort of couplings should I use on the 1" PVC ? Would this 1 in. PVC Slip x Slip Union work?
 
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Old 05-24-16, 07:21 AM
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Depends on how you're using the pump? Is this for an irrigation set up? Will it be stationary or will you be moving it. Will you have a long pipe or hose attached to it? Answer these questions and we can advise accordingly.
 
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Old 05-24-16, 07:36 AM
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Shallow well pump. Stationary.

17' well depth, 1" PVC intake. I want to take the pump in each fall and don't want to cut and re-join the pvc each time.
 
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Old 05-24-16, 08:34 AM
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Those unions work fine for the purpose you describe. I have a similar setup except using a pond as source not a well, but I use two of the unions so I can remove both the pump and the foot valve.

They have an o-ring in them that tends to fall out and get lost when they are separated, but forewarned is forearmed

Keep in mind that you can't leave water in any section of pipe that might freeze, which is why I remove the section of pipe with the foot valve; it allows the water to drain out of all the piping.
 
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Old 05-24-16, 08:35 AM
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Sped-

I’m no expert but I assume you are thinking of something like 4 and 8 in this diagram. I have not heard good things about PVC unions – but I may have heard wrong. I tend to overkill but I personally would transition from PVC to brass and use brass unions and a few brass nipples. More expensive but if it were me I would feel more comfortable – especially since you plan to open and close those unions on a regular basis.

Maybe the plumbers would disagree.

Shallow Well "Drive Point" Installation

Always happens - just saw Carbide's post - LOL.
 
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Old 05-24-16, 08:36 AM
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That union you choose is fine.

If you want to make for an easy hook and disconnect you can use Furnco couplings on the end of pipe nipples.

 
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Old 05-24-16, 10:01 AM
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The unions are fine. Use a little silicone grease on the O-ring and the threads to keep them from sticking. Don't tighten the union too much, the O-ring makes the seal.
 
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Old 05-24-16, 10:08 AM
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Thanks for all the replies. I'll go with the plastic unions. I'll use silicone grease and try to pick up some spare O Rings.
 
 

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