?     Asked on 3/9/2017by Inyo Visitor

When I backwash or rinse with my Pentair multiport, water spews with high pressure from the sight glass. Will replacing the sight glass solve this problem? I recently replaced the top section of the multipart and it works fine on filter mode.
 Reply

A  Answered on 3/10/2017 by InyoPools Product Specialist Alan M.

It is very common that there is a gasket where the sight glass threads into. You may need to replace both the gasket and the sight glass.
 Reply


?     Asked on 3/10/2017by Rod

Should I replace it even though the water is coming through the pre made factory holes?
 Reply

A  Answered on 3/16/2017 by InyoPools Product Specialist Lennox H.

Hi, Rod. That is an indicator that the gasket is bad and I would recommend replacing the sight glass.
 Reply


?     Asked on 3/30/2017by joe

is the item that i will receive the one pictured with the open vents? i had ordered from diff company same p/n and picture but received a non vented no holes one . thanks
 Reply

A  Answered on 3/31/2017 by InyoPools Product Specialist Andy O.

Hello Joe- The Sight Glass w/ Vacuum Protector (272550) part # 4600-2550 will come as pictured and have the vacuum vents with the rubber stopper.
 Reply


?     Asked on 9/4/2017by jimmy

hi, i have a problem with water spraying out my sight glass on my p/n262506 when i run backwash or rinse.. should i replace it or maybe a gasket?
 Reply

A  Answered on 9/6/2017 by InyoPools Product Specialist Lennox H.

Hi, Jimmy. I would recommend replacing the Sight Glass Gasket - E-16-S1 if the valve body and sight glass are in good condition. 
 Reply


?     Asked on 5/13/2019by Pete

Hi what is the correct replacement for my sight glass pentair tagelus ta 60d i have the vented one P/n 272526
 Reply

A  Answered on 5/13/2019 by InyoPools Product Specialist Lennox H.

Hi, Pete. Yes, this Sight Glass - 272550 will fit the 272526 model valve. 
 Reply


?     Asked on 5/22/2020by Lisa Stout

I need to know which sight glass and gasket will fit a Pentair Tagelus TA-50/50D please.
 Reply

A  Answered on 12/3/2020 by InyoPools Product Specialist Hector F.

Hi Lisa, can you provide the model number of the multiport valve, or could you send us a few photos? One of the entire valve and one looking down onto the top of it? To supply photos simply click the reply link below and upload your photos. Once we get those photos we can make the proper recommendation.
 Reply