

Ejector pump pulling a vacuum
Hey y'all I'm trying to figure out how to fix this and am not very knowledgeable on plumbing so recently I changed the ejector pump in my home I bumped it up from a half horse to 3/4 hours pump and even before that we were having issues with it pulling a vacuum from the upstairs toilet the last guy capped off the pipe you can see in my second picture which is avent pipe the one in the middle it's the actual ejector pipe to go to septic and the left is the vent pipe that goes directly through the roof but he assumed because we already have one it was ok to cap it off and change the configuration on the pipe to the upstairs but the real issue is now that we changed the ejector pump and made it stronger it's shooting water and waste into the upstairs tub any and all advice would be appreciated and this is just the information I was told this is actually my grandparents house and the last guy screwed the job so they don't have a bunch of money to spend thank y'all in advance idk if I can just 45° it a couple of time and reconnect into the vent line or what I should do