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Smelly septic tank - advice needed please!

Annie T
by Annie T

Hi Everybody! 

Our septic tank is giving us an intermittent problem - to whit, nasty niffs!!  It's not a problem outside - the system is working well and the smells are taken high out over the house and away - but rather it is inside the house!  We have 2 loos connected and from time to time it is evident that something is not right - and we're pretty sure it's not us!  We thought it might be coming through the pipework and up through the bath plughole as this can dry out due to lack of regular usage (it's ok folks - we DO use the shower!!) so we occasionally run some water down just to make sure there is a 'water filter' in the system.

There is a definite odour around the immediate area of the loo and we just can't work out what is causing it, or how to cure it!  I have been using 'septic tank' friendly loo blocks but as these are not perfumed it doesn't seem to have helped!  

Does anyone have any ideas for a permanent fix, or does anyone know if the UK perfumed loo blocks are safe to use with a septic tank?

Many thanks!

Annie

 

Living the rural life in the Limousin with a small gite to rent. www.laporcheriegite.com
last edited on
jojobean
#1
by jojobean

If you look on the packaging of all toilet related blocks & liquids they pretty much all say whether they are septic tank safe on the labelling. You'll be surprised how many ARE safe, I was. Smile

No idea about what to do about the smells though sorry

waz
#2
by waz

have you got a cracked pipe or a loose seal on the back of the pans ?

maybe worth a look or even use a smoke bomb in the drain if you see smoke you got an air leak problem.

“It will do you no harm to find yourself ridiculous. Resign yourself to be the fool you are... ...We must always take risks. That is our destiny...”
jimcrow
#3
by jimcrow

Is the tank  full?

doniv
#4
by doniv

If you have an access point on the pipework like a manhole ? I'd go with waz's smoke canister - thye you;ll SEE what's going on Cool

'Tis the time's plague, when madmen lead the blind. - Shakespear - King Lear
leah
#5
by leah

A loose seal with a slow drip which has rotted any wood/plaster behind the loo?  That's what my neighbour has !  Or maybe the pipe between your loos and outside are blocked?  We had this problem in that the builders had dropped rubbish down into the run-off which had blocked the pipe from the kitchen sink.  For years I poured gallons of Domestos-type stuff down because the back-up smell was from the cloackroom sink.  Eventually we sussed it! Thought we would have to have all the pipes up - kitchen sink pipes run under the floors to the outside - about 36 feet from one end to the outlet Mad  I was ready to leave home!

every change is scarey even if we want it
ozzi
#6
by ozzi

The lack of a water trap will bring odours into the house. When the plumber was at work the place was really rank, and even now the vent over the loo needs a charcoal filter on it. So use the various methods prescribed and see what happens. If they don't work, call a plumber. My neighbour had this problem and it turned out their french drains had packed it in ...

If you can't see the light at the end of the tunnel - run down there and light the blooming thing yourself!
leah
#7
by leah

Sorted?

 

There's a folk festival in Banbury soon ...........

every change is scarey even if we want it
ozzi
#8
by ozzi

Yes some feedback on the results is always helpful.

If you can't see the light at the end of the tunnel - run down there and light the blooming thing yourself!
Ralphs works
#9
by Ralphs works

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