Unions for Hayward System

[eric.mathison]

I'm attempting to convert my above ground pool plumbing to hard PVC. I'm having trouble trying to find unions that fit the outer thread on the pump, sand filter, strainer and return. Does anyone have an idea what type of unions (bushings) I can use?

Also, I've seen several folks use ball valves on the skimmer and return lines. Is there any benefit from these? When would you actually close them? Surely you wouldn't when you close the pool because you'd have water in the pipes.

Thanks.

 

[cowboycasey]

Hey there, I think these are the unions you are looking for Amazon.com: 2 PACK -CMP Hi-Temp Union 2 Garden

The 3 way jandy valves are used for flow between 2 suctions or 2 returns and also to close the pool for winter.. I closed 1 side, blew the water out using a shop vac, turned the valve, blew the other pipe out and closed the valve completely
Amazon.com : Jandy 4717 3-Port 2 to 2-1/2-Inch Positive Seal NeverLube Valve : Swimming Pool Pump Parts : Patio, Lawn Garden.

I hope this helps

 

[duraleigh]

If you don't find what you need, I suggest you call INYO Pools. They are really parts specialists and may find exactly what you want.

 

[eric.mathison]

So doing some research on these unions, I've figured out that I'll need 4 of these Hayward Union Connectors (set Of 2) WG (SP1500UNPAK2) - INYOPools.com
(2 - 2 packs) and 3 of Hayward 1 1/2spg) Union Wg (sp14953s) - INYOPools.com
. Boy, just for the unions it will be very expensive.

 

[Kmaz]

Hey Eric ...while the first unions you posted have proprietary threads for Hayward pumps and heaters , the second ones I believe might be standard and available at lowes and the depot for around $8. I'm not positive , but check it out. Near the schedule 40 pressure fittings.
Kris

 

[eric.mathison]

Hey Kmaz the unions at Lowes look much bigger and I didn't see any with male threading. Are they schedule 40 or just regular unions?

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[Kmaz]

I believe they are sched 40 and they come in all sizes up to 2" . they might not be threaded but if looking to save a few bucks, use the appropriate sched 40 threaded coupling that then converts to slip fit, then to unions. I used the ones that cowboycasey posted that come in a 2pack and they are nice and reasonably priced.