We have completed the process of installing new sanitation hoses and a new head
on our recently acquired Island Packet
370. The PO had not used the boat for the last few years and apparently left the holding tank
about three fourths full. At survey
the boat had head odor
and it was decided that the hoses had permeated and needed replaced. Our boat being a later model Island Packet
has a fiberglass holding tank
. (not the problematic Aluminum
tank they had been using)
At this point all of the hoses have been replaced with Sealand OdorSafe Sanitation hose. All connections are secured with two hose clamps. The holding tank has been emptied and filled with fresh water
numerous times. The vent line appears open, when flushing
the new head you get a small amount of gas out of it, as I would expect.
Our problem is that we are still getting a VERY strong odor
from the bilge
area where the tank and hoses are located. It fills the head and if head door is open the forward cabin
. If hatches are open you can even smell it outside the boat near the hatch
The tank, hoses ,Y Valves, macerator and thru hulls for sanitation are all in one bilge
compartment. This is the only area of the bilge that has the odor. It is a rather small area and appears very clean no standing water
we have wiped much of the area down with soap and water. It appears sparkling clean. But a very strong gassy head smell reeks from it. There is a opening from this compartment to the under side of the vanity in head for the hoses to go thru. I think this is how the smell is getting topside into the head.
My question is how is this gas smell getting out of the tank into the boat. We have done the wet warm rag test around all of the connections and around the Y-valves with no odor on the rag. In my opinion it would take a large leak to get the amount of gas odor we are experiencing.
We just finished the project
a few days ago. The hoses that came out were very smelly and showed signs of crystallization. Could the area in that bilge just need time to air out? We have seen no improvement and are getting very frustrated. Any ideas on what is going on would be greatly appreciated.
Bob and Cathy