Hayward Northstar O-ring/pump lid issue

[callmeammo]

I bought a home with a Hayward Northstar pump. THe pump has blue o-rings in it. These o rings sit on top of the basket, rather than in the groove around the pump housing.

I purchased these on amazon. These fit in the groove nicely, but now I cannot close the lid.


So my question is am I putting the o-rings in incorrectly, wrong size, wrong thickness wrong spot?

 

[Texas Splash]

Hello and welcome to TFP! Silly question, but did you use some pool/Magic Lube on the O-ring? I also noticed on the Amazon site the following customer replies:

install in pump housing not lid and lubricate with gasket lubrication grease from pool store

The CX400G Strainer Cover O-ring fits all SP4000 pump series, including SP4015X20NS, manufactured prior to 2003. Pumps manufactured 2003 to 2007 use the SPX4000TS "T-ring", and pumps 2008 and later use the SPX4000S O-ring.

THIS SITE shows a couple O-ring options, but which one depends on the year of your pump.

Manual: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwil3e-mrdLLAhUM4SYKHR2MDSIQFggcMAA&url=https%3A%2F%2Fwww.hayward-pool.com%2Fpdf%2Fmanuals%2FNorthStar.pdf&usg=AFQjCNFMB4VFicAzEDhLs_oLVPIWBxkKhQ

Maybe this info or some other replies will help clarify for you.

 

[callmeammo]

Yes, I used o-ring lube. It's an sp4000x series pump. I actually have 3 in the system. I ordered a new strainer cover lid to replace a cracked one and it comes with an o-ring so I suppose that will shed light on the issue.