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These are the build instructions for OpenROV v2.8.

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Underwater plug for the tether

I'm about to begin Guide 5 - Step 31, the tether. I was wondering if there is a waterproof plug or connector that would allow for the separation of the tether from the ROV? I feel that it would certainly be more convenient and manageable. I have googled and amazoned waterproof plugs and connectors and there seem to be several available but I don't know if they are suitable for underwater use. Any help?

Also, does anyone have any ideas on how to manage the tether? I can see 100 meters of wire becoming a jumbled mess.

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Great questions.

There are many different topics on our forum related to the question about waterproof connectors. We do not have an official recommendation, but you can see what has worked for other people.

As for the tether management, I would encourage you to take a look at this Community Hack guide that was written.

Good luck with the remaining part of your build!

-Brian G.

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I took the standard wire and put it inside three 100' lengths of 1/4-inch poly rope (available at ACE hardware for about $10 each). At each end, I connected the wire to "LEDJump 18AWG Wire Gauge Male Female Plug 2 Pin LED Waterproof Connector Cable Black (5-pack)" available through (priced at about $13 - only used three). I connected each rope separately with standard clips. The wired connectors are very strong but I use the cable to pull the teather and not use the wired connectors. My ROV uses one of these rater than the strain relief and wire in the standard directions. My poly rope attaches (clips) to the back hole of the ROV and the connector cable goes all the way to the wire harness and uses several zip ties as additional strain relief. My ROV is completely separated in the case from the cabling.

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Barry Swackhamer will be eternally grateful.
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