Multiport Valve Leaking

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  • Last Post 23 July 2019
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IceShadow posted this 11 July 2019

Hello! I have a multiport valve that is leaking from the top near where the handle is. Photo below. It says the model is WC 112-147. Any advice on where I should start troubleshooting?

(Referral from TroubleFreePool.com.)

Thanks! 

 

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InyoRob posted this 11 July 2019

Below is a schematic of the WC112 valve. A common cause of a leak by the handle is the shaft o-ring (key 8). Other problems could stem from the spring (key 10) or the rotor (key 12). These parts are difficult to replace. Most pool owners prefer to replace the top assembly (key 17). Here is a link to the parts http://www.inyopools.com/pool_parts_sta_rite_multiport_1_1_2_wc112_series.aspx 

Sta-Rite 1-1/2" WC112 Series Multiport Valve Diagram

IceShadow posted this 11 July 2019

 Thank you!

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InyoRob posted this 11 July 2019

You're welcome. Thank you for visiting INYOpools.com,

IceShadow posted this 18 July 2019

Hello! I replaced the top of the MPV, being sure the new o-ring was seated correctly, and the leak from the top of the valve is even worse. See below photo. Any advice?

InyoRob posted this 18 July 2019

I've contacted a Pentair rep to see if he has an idea why it would leak even worse with a new cover assembly. I'll respond as soon as I hear back.

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IceShadow posted this 18 July 2019

Ok - thank you! I do have photos of the housing below it, for what it’s worth. 

IceShadow posted this 18 July 2019

I disassembled the new cover assembly and it had no o-ring! See photo. 

A little disappointed as not having to take it apart to get to the o-ring was why I bought the whole assembly.

InyoRob posted this 19 July 2019

Sorry to hear that. Are you missing key 8?

IceShadow posted this 19 July 2019

Correct. Who do I contact with order info to resolve?

InyoRob posted this 19 July 2019

I'll handle that. We can ship one out to you at no charge. I apologize for the inconvenience.

IceShadow posted this 19 July 2019

OK - please let me know if you need any info.

IceShadow posted this 23 July 2019

Received replacement and swapped it out. No more leaking. Thanks!

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InyoRob posted this 23 July 2019

You're welcome. I'll let the Pentair rep know that some of their valves are missing the shaft o-rings.

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