Pentair Multiport 261055 for Quad DE filter question

Jason M.

New member
Jun 17, 2021
Austin, TX
I purchased the multiport and Quad DE filter on line and received both a couple of days ago. The MPV looks to have a defect, but I'm not sure if it will cause any leakage. I would like to get some advice before I plumb everything in. Attached is a picture of the valve. Thanks in advance for the help.


  • Multiport Valve.jpg
    Multiport Valve.jpg
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Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
Southern OK
Pool Size
Salt Water Generator
SWG Type
CircuPool SJ-40
Welcome to TFP :)

I would get a refund and get another one, looks like it messes with the O ring therefore the seal... :)
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