RODI running really slowly

[TacticalReef]

I have noticed over the last couple of weeks my water production has been really slow. Wanted to know if anyone had some ideas.

90 psi
120-140 tds coming in (thanks Chicago)
New filters and DI Resin within the last few weeks

It takes like 3-4 hours to get around 3 gallons of water.

 

[Crabs McJones]

what GPD membrane are you using? Are all the filters seated in the unit properly?