Sounds like you have a plumber willing to help, so fantastic on that side. I would maybe get a hob filter if this will tak a while to repair. Just a thought. Helps with air exchange.
Anyway. Personally, I would love to see the entire set up without the Frankenstein install along with the sump and return to give you the best ideas. Plug the return hole with a cap/plug and remove all plumbing. Start from scratch. Listen to the plumber and take some pics.
Anyway. Personally, I would love to see the entire set up without the Frankenstein install along with the sump and return to give you the best ideas. Plug the return hole with a cap/plug and remove all plumbing. Start from scratch. Listen to the plumber and take some pics.