Booster pump housing cracked

Hi jumping on this thread. My pb4sq (1yr old) just started dripping behind the drain plug this week. So all good until about 6 weeks after opening. Now it’s a steady leak about a half inch back behind the plug opening. Orig thought o ring but that’s fine. Seems like it could be a hairline crack. Input some pipe glue on it (blue water based) and it stopped for about an hour but then started back up. Replace the pump body? Can’t find it anywhere. Anyone know if any o her parts needs replaced at same time. I tried calling Polaris and 2 hr wait. 1 yr old and I installed it as direct replace to old pb4. IMO whata piece of junk. 6 summer on poll and that was 3rd booster. Orig was junk and replaced and got 4 years on 2nd but this is pathetic.
 

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