Blocked Toilet Pipe

[ashley_lewer]

Hi All

Relatively new to the boating game so apologies if to some of you this sounds like pulling teeth!?

I have a Sealine F46 based out in Mallorca and the last time we were out the heads toilet became very slow to drain away when flushed.

I’m 99% sure the toilets on board are Techna (electric).

I’ve read a few posts on here with different suggestions on what to put down, i.e citric acid, vinegar and bicarbonate and also HCL acid; but what I’m struggling to understand is how do you apply it?

Is it a case of putting in the toilet and leaving?

Or do you put in and flush once, or add small amounts regularly and flush each time?

Does the holding tank need to be emptied straight after?

The guy we bought the boat from last year didn’t give it the love it deserves so trying to bring her back!

Thanks for the help

 

[vyv_cox]

Fixing poor flushing using chemical treatment is a very slow and variable method. The cause may well be that the discharge hose is blocked with salts, in which case it is far more effective to replace the hose, or mechanically empty it.
Hydrochloric acid is by far the most effective chemical method. Once you know that the hose is clear it is worth treating to keep it clear. Half a litre of acid in the bowl, empty at slowest rate possible so the acid remains in the hose. Flush with plenty of water after about 30 minutes.

 

[C08]

I had a heads outlet pipe almost completey blocked with calceous/crap deposits. The short term fix was to beat the hose with a stick/spanner/hammer which loosed stuff enough to flush the blocked pipe contents. This is an important step if you think about it. Then with the EMPTY pipe off the boat it is easily freed from the crusty deposits by a few blows on the pontoon or other hard floor surface.

 

[pvb]

Welcome to the forums!

With your electric toilets, it may be less easy to only pump a little acid in to the discharge. The most straightforward solution would be to replace the pipe between the toilet and the holding tank, then you know you're starting off again with a clean pipe (and be sure to get a low-odour pipe).

 

[harvey38]

Salt or fresh water flushing toilets installed?