Glycerine down the lavatory

[Poignard]

I have almost a litre of glycerine left over from the early days of the Covid pandemic when we were making our own hand sanitiser.

Having no more use for it, I was thinking of using it to lubricate the Jabsco seals, instead of the tablespoon of cooking oil which I usually use.

I can't see any objections on ecological grounds but is it likely to have an adverse effect on the rubber/plastic pump seals?

 

[CM74]

I wouldn't expect it to cause any issues with the rubber (assuming it's neoprene or something similar) as glycerine is sometimes supplied as a lubricant with new pump impellers.

 

[thinwater]

In fact, it will tend to dissolve the grease, and the glycerine itself is water soluble and will be gone in a few flushes. Thus, it will make things worse after that happens. Glycerine is not a water resistant lubricant and makes no sense in this application. The best disposal would be to dribble it out in the grass, where it will biodegrade. Or just keep it; it will not go bad, not in 20 years.

• No head manufacture recomends flushing vegtable oil. It dissolves the grease, and in the case of Jabsco heads, is rough on neoprene parts (other brads use nitrile).
• Oil and grease is banned from all sewers because it coats the pipes (and your tank) contributing to blockages.

IMO, and that of the manufacturers, veggy oil is an old wives tale we wish would go away. Instead, slap some synthetic grease on the piston every 1-2 years.

 

[Fr J Hackett]

I suggest that you take several spoonfuls a day that should lubricate the workings quite well. ?

 

[LittleSister]

• No head manufacture recomends flushing vegtable oil. It dissolves the grease, and in the case of Jabsco heads, is rough on neoprene parts (other brads use nitrile).
• Oil and grease is banned from all sewers because it coats the pipes (and your tank) contributing to blockages.

Any recommendations on how to separate out the vegetable oils and animal fats I eat before I use the head?

 

[VicS]

Any recommendations on how to separate out the vegetable oils and animal fats I eat before I use the head?

You must not use the heads if you have eaten animal fat. Use those dog poo bags and take it home with you.

 

[Roberto]

I have almost a litre of glycerine left over from the early days of the Covid pandemic when we were making our own hand sanitiser.

At that time on these pages it was stated in seemingly very authoritative way, that the WHO home made sanitizing solution was useless: it eventually became (among) the most widely used home made disinfecting products during covid times.
If you have some left, in these slightly brighter times it could be added to Fairy liquid to make a solution for those giant soap bubbles (say 1m diameter) to cheer people all around you

 

[thinwater]

Any recommendations on how to separate out the vegetable oils and animal fats I eat before I use the head?

There is always one....

You can Google the normal range of fat in human waste and at what levels it relates to health problems. Yup, it's a thing. Happy reading.