8mm Boat plumbing

[krustynutz]

Heres one for someone who is accustomed to working on the small
pipes used in boats and caravans..

I have fitted a bubble tester in my boat to help comply with boat safety regulations.. when I use the tester I get about one bubble every 15 seconds. Nothing too drastic, but one bubble is clearly too many..

I am pretty sure the problem lies in a T piece that branches off and feeds the fridge.. The T piece is a normal 8mm compression fitting.
However, on one junction there is a short tail connecting to the fridge hose..

This tail piece is Not a compression fitting, it just screws on where the original compression nut was.. no olive.. no compression..

I am sure this is wrong but have been unable to find a similar fitting
that is better...

On the other hand, I may be completely wrong and that this is a normal way of attaching a tail piece ???

any advice much appreciated ... the finished job will be inspected by an expert but I want to get it right first under my own steam

Ta
Chris

 

[turnpin]

this "bubble tester" what is it made of is it glass? any chance of some photo`s regards turnpin

 

[krustynutz]

plastic rubber and metal... heres a link
8mm Alde Marine/Boat Gas Leak Detector | Bubble Tester

 

[turnpin]

this is an updated version of what I know as a Drezzle bottle a guy I know had a shop that used to recondition cookers and this was part of his testing equipment his one was made by pyrex the glass people and looked like a piece of frankensteins laborotary.regards turnpin

 

[krustynutz]

A nice anecdote........But Any thoughts on the query I posted ???

Chris

 

[turnpin]

this "bubble tester" what is it made of is it glass? any chance of some photo`s regards turnpin

Perhaps I should have made it clearer sorry any chance of a photo of the connection you suspect is leakingregards turnpin

 

[krustynutz]

dont have any pictures handy but an 8mm brass T compression fitting is pretty much the same wherever you buy them ..

The hose nozzle attached is a plain brass screw fit that goes on the centre of the T ... But it is not a compression fit... just screws on.

 

[turnpin]

you need to replace the hose adaptor with a...HA312 plus an 8mm nut and olive and a short piece of 8mm copper tube sealed with suitable sealant for lpgregards turnpin

 

[ecowarm]

This type hose union I think would fit 8mm compression tee as I think it 1/4" bsp but I may be wrong.

Eco

 

[krustynutz]

you need to replace the hose adaptor with a...HA312 plus an 8mm nut and olive and a short piece of 8mm copper tube sealed with suitable sealant for lpgregards turnpin

thanks for the advice.. what would a 'suitable sealant' be ??

Chris

 

[turnpin]

back to the same site ref-HA825 for lpgregards turnpin

 

[rebecca14]

Well if you are sure that the problem is with the T piece of your plumbing process, I think you should fix that in T piece also. Check the T piece that branches off and feeds the fridge.

 

[ecowarm]

Well if you are sure that the problem is with the T piece of your plumbing process, I think you should fix that in T piece also. Check the T piece that branches off and feeds the fridge.

Some sort of spammer?

 

[Toddyplumb]

The problem you have connecting any of these hoses to a compression fitting is that the end of the thread is quite sharp as it is taperd to accomodate the olive . This can then cut the seal .

 

[krustynutz]

Thanks for all the replies...
problem is now resolved and ready for safety inspection ..

The hose tail that I had attached to the T piece was not of the right type..
replaced it now and it al good... no more bubbles

Thanks