The good news is the Alpha 1 is a pretty good unit overall.
If it’s a slow leak indeed I’d try 4200 as noted above. Flip side if your doing a rehab on the boat wait until off season and start tearing it down mechanically. Try to figure out the parts that have to be replaced ahead of time first. Make sure you can get them.
Another note… check the water as it’s bilged out for temp. If it’s warm, that will give you a different source for the leak.
Osky
