Waterproof wires from float sensor

[Raul-7]

How can I extend the wires while making it waterproof; I don't want to use a PVC pipe mount.

With this?
http://www.homedepot.com/p/DryConn-...onnectors-Aqua-Orange-20-Pack-62114/202889871

Or heatshrink and silicone at the both ends?

 

[theatrus]

Will the wire splice be immersed or do you just want to protect against environmental moisture?

 

[slief]

If you are talking about extending the wires, get some marine grade shrink tubing and some liquid electrical tape. Solder the wires, shrink tube them then coat the shrink tubed wires with liquid electrical tape. That is the way I have connected bilge pumps, bilge sensors and other electrical devices in marine boats for years and is the best way to insure water tight connections. You can get the liquid electrical tape and marine shrink tubing from any boating supply store like West Marine, Defender etc.. If the connection point is going to be above the waterline, solder and marine shrink tube or even regular shrink tube should be enough but you definitely want to solder those connections.

This is the shrink tubing I am talking about. It's adhesive lined to insure a water tight bond.
http://www.westmarine.com/buy/ancor-marine--adhesive-lined-heat-shrink-tubing-alt--P009_275_003_003

Liquid electrical tape:
http://www.westmarine.com/buy/west-marine--liquid-electrical-tape--544171

 

[Raul-7]

Will the wire splice be immersed or do you just want to protect against environmental moisture?

Yeah, possibly immersed.

If you are talking about extending the wires, get some marine grade shrink tubing and some liquid electrical tape. Solder the wires, shrink tube them then coat the shrink tubed wires with liquid electrical tape. That is the way I have connected bilge pumps, bilge sensors and other electrical devices in marine boats for years and is the best way to insure water tight connections. You can get the liquid electrical tape and marine shrink tubing from any boating supply store like West Marine, Defender etc.. If the connection point is going to be above the waterline, solder and marine shrink tube or even regular shrink tube should be enough but you definitely want to solder those connections.

Thanks. I need to solder them not just twist them into each other?

 

[slief]

Yeah, possibly immersed.



Thanks. I need to solder them not just twist them into each other?

Absolutely solder. No way I would twist them together. Not in a million years. Soldering is easy and it's the only way to insure a reliable contact that will last long term. A twist connection will not be reliable long term and would be asking for problems.

If you can't do it yourself, bring them to my place and I will do it for you. That would mean busting out that Mustang and taking a drive! :thumbsup:

 

[theatrus]

Pedantic note: In terms of connection quality, cold welds/crimps are superior to solder. The crimps are also hard to do right.

Pre-tin, mechanically couple (twist), add solder, and coat as sleif mentioned. Your failures will be some flexing of the coat vs the original PVC jacket if the bonding doesn't happen right.