Hairline crack in PVC repair?

[sammm]

Hi all! Found a small leak near my backwash valve today. Appears there's a small stress-fracture near one of the screws. Is there any way to repair that, short of replacing a lot of PVC?

I've circled the area in question on the attached picture. You can see where I've tried to 'patch' it with some PVC cement.

Thanks in advance!

 

[gwegan]

No matter what you do I would suspect you can never really render that crack leakproof. You could try removing the screw and gently heating with a blow torch to re melt whats there but you run other risks.

I would post a more complete picture and we can come up with a plan to replace it. Can you purchase that part?

 

[sammm]

Here's a more complete picture. Fitting circled in red, glued joints with blue lines pointing them out.