I'm installing a sink in my basement in which I have no gravity fed drain system in place. I am therefore purchasing a drain pump to pump up the waste to tie into my present septic system. My question is in relation to venting. Can I bring the vent up into my floor joists, go horizontal for several feet, then come back down to send it over to the main vent, thus creating a trap if you will with the vent.
Also, the main vent for the system starts out on a slight horizontal (coming off the main drain stack), then does a vertical out onto the roof. Can I tie the new vent into the existing vent at this slight horizontal or do I have to tie in at the vertical portion?
Also, the main vent for the system starts out on a slight horizontal (coming off the main drain stack), then does a vertical out onto the roof. Can I tie the new vent into the existing vent at this slight horizontal or do I have to tie in at the vertical portion?