C26 waste tank leak

G

goletamoby

Member
Joined
Dec 2, 2022
Messages
20
Fluid Motion Model
R-21
Vessel Name
Nomad
I’ve developed a small leak in the water tank, seems to be on the backside starboard side. Notice when we run it and can see water trickling down the hull to the bildge. Is there any troubleshooting that can be done without having to remove the whole tank to get on the backside of it to work on it?
 
Check fittings. Can't figure out where leak is, tape paper towels at suspect places and see what is wet in a few days.
 
I should clarify, it mostly seems to leak when flushing and under pressure.
 
If you say flushing, i assume your toilet uses fresh water, not like older tugs that use saltwater. Are you positive it is the water tank? Not rain water, air conditioning, etc.? Does your water pump ever randomly run. If not something, else might be leaking. Leave your water pump on all the time just to see if it randomly runs. Some people leave the water pump on all the time anyway.
 
Mastercraft said:
If you say flushing, i assume your toilet uses fresh water, not like older tugs that use saltwater. Are you positive it is the water tank? Not rain water, air conditioning, etc.? Does your water pump ever randomly run. If not something, else might be leaking. Leave your water pump on all the time just to see if it randomly runs. Some people leave the water pump on all the time anyway.
Click to expand...
It’s a 2014 so it uses saltwater.
 
Mastercraft said:
Check fittings. Can't figure out where leak is, tape paper towels at suspect places and see what is wet in a few days.
Click to expand...
Use the brown paper towels, they really show water better the the white ones.

Ralph
 
There is an inspection cover on the top of the tank. This will leak if the orange is damaged and the tank is 3/4 full and the waste is slushing around. If it leaks when you are flushing because of pressure chances are the vent is plugged causing fittings to leak. The vents are notorious for plugging up. At least mine was. Disconnect the vent hose from the hull vent and install a garden hose fitting on it. Then hook a shore water hose to the fitting and back flush with fresh water. That will clear the vent hose.

You can get at the inspection cover of the tank by removing the back seat and the storage pan. The same way you would get to the thruster.
 
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