Rather have a pump that can be adjust down as need, that use less energy and less work for the pump.
Not really relevant question.Where is the tank located & where is the sump?
Not to thread jack, but can someone explain why one would want to repeatedly adjust the return pump? I don't understand how that's useful.
I read a little more about Jebao pumps. Maybe I am too quick on the decision. I think I am going to really clean my Water blaster and wait for another year or two. I wait until EcoTech solve their problem or really good evidence that Jebao DCP pumps are trouble free.
It's not that you can constantly change it, it's that you can set it to exactly what you want for regular and feed modes. You can use a valve on an AC pump to try to control flow but it will never be as precise and will be more prone to clogging and what not.