What do you think, would another pump help?

These are pictures of my stock balast system that takes forever to fill. You can see in the first picture that I have one inlet that necks down and goes to a green hose up to the pump. The outlet of the pump then comes back down and "T"s into the bottom of both tanks at the same time (second pic). I wish I could pipe it into the top of the tank but I think that would be a large project maybe for the winter time. For now I'm thinking of splitting the inlet and feeding two pumps, one for each tank. Do you think this would solve my super slow fill time? The white 90 degree elbow is 1", would it be enough to support two pumps running at the same time?

I'm thinking I will get rid of the white 90 in the first pictureand put in a brass 90, a valve, a "T" and then split to the two different pumps then have each pump fill its own tank.