[slief]

Sorry for the late replay. What I would do is use a paper clip with a slight bend in it to remove the broken stup tube from the pump side of the elbow. Then clean the back of the pump and stub very well with some rubbing alcohol. Use a tiny bit of CA glue to glue the stub back in place by appling the CA to the broken end of the tube and being careful not to block the tube with glue. It only takes a little bit of glue as we are only tacking the tube back in place. I am sure it’s not a perfectly clean break which is a good thing as it will give you something to align the stub back onto the block. Once the glue sets, carefully put the elbow fitting back onto the pump. Aim the elbow towards the connection on the pumps output so the red tube reaches where it should go. Don’t put the red tube on yet. Next mix up some epoxy and use a syringe to squirt it into the back of the block around the elbow fitting. The idea is to fill the void around the elbow so it’s permanently bonded and can never break again. Once the epoxy cures, reinstall the AKB tube and you are set.