You can certainly try the manifold. I know the plumbing is easier. But Ive had better luck (and read many many discussions that it works best ) running from DT back to DT.Safe to assume that works better than coming off my return manifold?
Trying to envision the plumbing. Pump (w/intake screen) right in the tank hard plumbed with PVC elbows over the rim and soft tubing down to the UV and back maybe?
Yes, your plumbing sounds good and I’m sure you might have to tinker with it. Mine is basically hanging off the back with some pvc elbows. Hopefully your is temporary. I think mine is permanent now