Integrated masts holding water

1

Hey crew! Do most integrated masts for foil assist retain water? I have a Manta foils aluminum integrated mast (20 cm motor placement) with a unifoil adapter that I use with my manta takeoff flow. Overall I really like it, it has very low drag and fun to use in the surf. However, It seems no matter what I try I still get water in the mast which of course adds weight. Any tips or thoughts? Or is it not really a big deal? Much appreciated