blocked toilet waste pipe, before or after anti syphon??

[shanemax]

Just a thought......... 0.01 bar must have started the sinking of the Titanic.

 

[Neeves]

When I ran a charter yacht/sailing school part of the briefing was:
"If anyone lets the end of a halyard run up the mast they have automatically volunteered to go up and retrieve it"
The same idea could apply to toilet blockages - it should encourage enthusiastic pumping.

Sign in our toilet

'Anyone blocking the toilet is automatically promoted to Head Cleaner'

Its a bit easier if you have an electric toilet (and a manual one for when the electric one fails)

Jonathan

 

[TactilePaul]

Just a thought......... 0.01 bar must have started the sinking of the Titanic.

true, or therabouts, but ts hard to hold back water coming through a huge tear through the hull, easy to through a round pipe..

 

[RupertW]

The advice to pump a lot is fine in the UK where people rarely anchor in their preferred turquoise swimming pool. If you are using holding tanks for a few days or a week each time then it’s important to pump just enough to clear the bowl and no more. That just means that outlet pipes need changing once a year so knowing the exact length of all the pipes and having the right jubilee clips makes it a very quick regular job.

 

[shanemax]

Both sides can and often are affected by build-up. If one side was badly clogged, the other side won't be much better. While you are at it, clean the anti-syphon as the valve often gets clogged as well.

If the pipes are old, better to replace them than bang them clean. New pipes are softer and easier to re-fit.

You should be concerned about your stuck open sea-cock: it needs to be changed. Loo outlet seacocks are particularly prone to this. Do not think for one moment of doing away with it! If you are a plumber and not worried about a bit of water, it can probably be changed afloat. First check if the sea-cock can be turned very slightly without disturbing the skin fitting. If so you are in business. Swim down and knock a bung into the outlet to stop the worst of the flow. Then cut off the pipe (easier than trying to pull off), unscrew the old sea-cock from the skin fitting, and fit a replacement using PTFE tape. Do this quick and you won't have more than a cup or two of water come in. Open the new cock, poke out the bung, slam it shut and refit the pipe. Best is two hose (jubilee) clips on underwater fittings.

View attachment 162114
Old toilet pipe, cut off at the seacock. Note the bung and hammer.

Looks like an Artery before a stent or bypass............. happy days