Water proof wire connectors.

[BML]

I have some 12 V garden lighting and pond pumps all of which are run through 12v transformers with wiring that shows it had been extended. The wiring was put in place some years ago and the person who did it used what I will describe as "Block connectors" to connect the wire extensions wrapping them waterproof tape which was then buried. When I was re-routing the wiring I found that to put it mildly, the block connectors had deterioted.
Is there a waterproof device that one can use that could be used to connect these wires placing it under about six inches of soil?

 

[WabbitPoo]

Yes, your local Q and B will sell them - small black boxes (size of a matchbox). Look for their Ring System lighting section.

 

[Chri5]

http://www.tlc-direct.co.uk/Main_Index/Cable_Accessories_Index/Cable_Joints_1/index.html#Pratley_2

 

[BML]

Brilliant, many thanks all.

 

[Taylortwocities]

Yes, your local Q and B will sell them - small black boxes (size of a matchbox). Look for their Ring System lighting section.

Those connection boxes are not designed to be buried. If you bury them they will suffer the same fate as the insulation tape method - failure.

If you wish to bury the joint then you need an enclosure with an IP68 rating.

The Pratly jobbies will do the trick, but at a price.

Cheaper boxes filled with Magic-Gel or a similar potting agent works well too.

It may be worth working out by what you call "waterproof". Thee are a lot of enclosures marketed as "waterproof", but they are not. They may be ok to join two lengths of flex and left in the rain and snow.
But chuck the joint into a fish pond and it will last a day, at best.