This is one in a series of A Guide to Narrow Boat Problems.
Problem
Holding tank smells
Cause
There are two types of toilet - one which pumps into a holding tank and the other which is encased in a removable cassette. In this case the holding tank is full, breather pipe is blocked or sewage is not being digested.
Solution
Short of converting to cassette toilet, first pump out the tank. Wash it through with water and pump out again. Add "blue" digester or similar chemical. Identify breather tank and ensure it is clear. Check under floor boards and round toilet to ensure there is no overflow. Clean thoroughly if in any doubt.
Avoidance
Pump out regularly. Install an external gauge to measure how much is in the tank. Use local conveniences where possible ....
Incidentally the "blue" in this picture should be in the tank rather than in the loo itself.
Problem
Holding tank smells
Cause
There are two types of toilet - one which pumps into a holding tank and the other which is encased in a removable cassette. In this case the holding tank is full, breather pipe is blocked or sewage is not being digested.
Solution
Short of converting to cassette toilet, first pump out the tank. Wash it through with water and pump out again. Add "blue" digester or similar chemical. Identify breather tank and ensure it is clear. Check under floor boards and round toilet to ensure there is no overflow. Clean thoroughly if in any doubt.
Avoidance
Pump out regularly. Install an external gauge to measure how much is in the tank. Use local conveniences where possible ....
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