@Gym, last time I raised the nose on the trailer having all plugs open the amount of water was quite significant - about 20-30 litres (5-7 gal). It was definitely from somewhere in front because I pumped out all water from the engine compartment before I took the boat out. The ski locker was dry, the anchor locker is dry as well, I have drainage in it so all water goes outside. The tower is stock but there are four speakers and wakeboard holders on it, and bimini of course. On the front wall of the right storage there are two amplifiers. Two anchors - one in the anchor locker and one under the left bow seat.
In the back I have two batteries, the charger, all things like tools, shore power cable, flares, rope lines etc. AND 5 gals of gasoline in the canister AND 40 l (9 gal or so) water tank. This tank alone when full should overweight the extra anchor and amplifiers. Next time I will try to move the anchor under the back seat.
For the next season I will also remove the front ladder, never used it, and actually it is annoying to put it out just to get the anchor. Also I would put a cleat for the anchor somewhere in the middle of the nose, as it is much better, comfortable and safe to keep the nose straight against the wind/waves while anchoring in the choppy sea. Where do you guys tie the anchor rope?