Alex F
Well-Known Member
- Nov 14, 2006
- 9,166
- Boat Info
- 2005 420DB with AB 11 DLX Tender, Raymarine Electronics (2x12" MFDs) with Vesper AIS
- Engines
- Cummins 450Cs, 9KW Onan Generator, 40HP Yamaha for tender.
And yes, I do have a little water in the bilge which also recently appeared. It was dry earlier in the summer. I dont use the water heater though and am pretty sure it doesnt have water in it (not even sure how to fill it).
This is a huge clue to the puzzle. This more sounds like a water heater leak to me (but I hope I'm wrong for your sake). I'm not an expert, but I'm thinking that WH fills up not when you fill the fresh water tank but as soon as you open hot water side of any faucet. If there’s no hot water it’ll start spitting air until it’s filled with water.
So, take a closer look around the WH and see if there’s any evidence of leak, slightly rusted screws, etc. I’d say that 4year for a WH is about the time for them to start giving troubles. I had to replace mine in 240DA and now in 320DA when the age of WH was about the same 4-5yrs.