Seems like a/c leak into aft berth storage under mattress

GoodVibes

New Member
Jun 22, 2020
28
Boat Info
2001 290 Sundancer
Engines
Dual Mercruiser 5.7 EFI with Bravo 3 outdrives
Sorry, I may be in the wrong place. Brand new to the site and first time boat owner as of about a week ago.

There was some standing water in what looks to be a storage compartment underneath the mattress in the aft berth under the port side chaise lounge seat. Some light stain on the bottom of the mattress.

The surveyor couldn't find any leaks in engine compartment on sea trial. All looked well in that respect. There was some moisture under the seat on deck which is above the berth area, but no stains or moisture on the mattress itself. Just underneath, and the sitting water in the storage area.

The sellers, who seem to be upfront and honest the whole way through had noticed the water in this same spot once over the 10 year period they owned the boat.

We soaked it up 5 days ago. Took her out yesterday for a few hours(she stays in the water in a slip in between runs now) and last night there was slight dampness under the mattress again and only a small amount of moisture in the storage compartment. Nothing major in either spot.

No stains in the head board in the berth, no wood stains in the cabinetry at all. We have used the A/C for a few nights in a row now and the sump pump(which needs a cleaning) seems to be working properly and exiting water every so often when the A/C is on. There is a slight film of yellowish substance beneath the sump pump box also. This is located under the steps from deck to cabin and just behind a side wall in the berth cubby.

Any ideas here? I appreciate any insight in advance!

2001 290 Sundancer
Twin Mercruiser 5.7 EFI with Bravo 3
 

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