Pentair filter drain plug damaged

[antoniosp]

@swu222
I have same issue and I put the plug from the top inside the filter and worked just fine. Pressure pushes it down I guess and no issue at all just hand tightened it.

 

[antoniosp]

I had the same issue as posted on this

Pentair filter drain plug threads ruined

Hello everyone, I have managed to ruin the threads on my Pentair cartridge filter where the drain plug goes. Any suggestions easiest way to close that hole so I can use shopvac to clean my filter from next time? I bought a replacement plug but not going in at all with the threads damaged so...

www.troublefreepool.com

I solved it by installing the plug from the inside part of the filter, just hand tighened it. no glue. I guess pressure keeps it down works fine so far no leaking. thought I'd pass along.

 

[JoyfulNoise]

You might consider shopping around for a bulkhead tank fitting. These types of fittings are used in various tank designs when it's difficult or impossible to weld or cut threads into the tank body. An example of what I'm talking about can be found here -

https://www.grainger.com/product/HAYWARD-Bulkhead-Tank-Fitting-PVC-3CEC4

The o-ring on the bulkhead fitting acts as the pressure seal. I haven't look at the bottom of my tank in a while but I suspect there is limited space to maneuver down there. There may not be a bulkhead fitting capable of sealing the hole if there isn't enough room. Might work a little better than using a winterizing plug and the bulkhead fitting is usually threaded so that you can attach either another pipe or a properly threaded plug to seal the hole.

 

[HermanTX]

Are you saying you installed the drain plug from the inside? So next time how do you drain it before disassembly?

 

[Newdude]

It'll drain halfway or more just by opening the air relief valve. Then it's shop vac time.

 

[generessler]

Shop vac sounds great. Another idea: I use my "Spa Wand" hand pump, originally meant to get junk off the bottom of the spill-over spa where the robot can't reach. The plug on my filter is fine, but dancing the limbo is necessary to get hands on it.

 

[JamesW]

You can probably clean the threads with a tap.

1-1/2 in.-11-1/2 Carbon Steel NPT Pipe Tap.

Drill America 1-1/2 in.-11-1/2 Carbon Steel NPT Pipe Tap DWTPT1-1/2 - The Home Depot

This super durable Drill America Carbon Steel NPT Pipe Tap helps your existing pipe and tube to seal better. Easy to install.

www.homedepot.com

 

[JamesW]

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