I helped a friend of mine transport his recently bought Bene 38 back to his home port last spring and on the trip figured out everything that didn't work on it during the transport, including the fuel
gauge, but that's another story.
On his 38 there were three water
tanks, all had overboard
vents, through hulls just below the rails, the water supply tubing was all interconnected at a manifold under the floorboards in the salon
. All three tanks were black plastic, most likely HDPE, with inspection ports
. Not the best quality tanks I've seen, I wasn't too impressed with the way the hoses were routed or supported, or should I say unsupported. That boat also filled the bilge
when we filled the tanks, it also filled the bilge
just sitting, we spent the remainder of the trip finding the leaks
and then some time in home port tracing the remaining leaks
One of the vent lines had cracked near the through hull
fitting, which was a bugger to get at, good thing the owner is 5'8" and 155lbs, I would never be able to get at it. The original installation
put too sharp a bend in the unsupported vent hose, it eventually failed, so it leaked at fill time and when on a starboard tack. Two the the inspection caps leaked, new gaskets cured that.
is plastic tubing with compression
fittings, similar to what their using in new homes now. This is a good system when installed correctly, it's a bugger when not. Some of the bends were a bit too sharp near the compression
fittings and had cracks, once replaced with generous bends the problem went away.
If your leaking when filling check the vent hoses and filler caps. If it leaks when sitting check the lines between the tanks and valve header all the way to the pressure pump. If the pump cycles often with the faucets closed check the fittings on the hoses, that's where they are most likely to fail, of course if a line has chafed the leak can be anywhere.
I can't say that our experience is common, after all it was a 1997 model and the previous owner was maintenance
challenged but the plumbing
appeared to be original factory. No matter how good the company it only takes one hung over employee on a Monday morning to make your life interesting.
Once straightened out the water system worked fine and didn't fill the bilge.
Now about that fuel