Sewage Ejection pump keeps blowing off fittings.

[Jacob Pitman]

I recently installed a sewage ejection pump in an unfinished basement, and it keeps blowing off a quarter bend taking it into the wall, where it feeds into a three inch main. I've drilled a weep hole and checked the check valve to ensure they are installed properly. What else could be causing the pump to blow the fitting off?

 

[frodo]

fitting not installed correctly/or wrong connection used

show an image of what you have

 

[Matt30]

Did you use primer and solvent on your joints? Primer cleans the pipe to ensure a proper bond

 

[Geofd]

how did you secure piping to prevent it from vibrating or shaking?????