How to repair frayed cable

[sunoka]

I inspect electrical and work closely with CSA....you need to throw the pump in the garbage it is unsafe for your fish and your home ! Are you GFI protected ?

Originally Posted by reefgirl189

I'm having some trouble repairing a cord from a used piece of equipment I bought from another canreefer.

The cord from the tunze pump unfortunately will sit partway in the water of my DT. The protective sheathing is cracked, exposing all the wires inside. Luckily the internal wires still have their sheathing.

Originally my plan was to get some good heat shrink and use that but I can't find any that will fit over the end of the cord and shrink enough to enclose the exposed wires to the point of being considered waterproof.

I'm nervous of using electrical tape to do the job as it is going to be underwater.

Does anyone have any ideas on what could work? I'm down to my last brilliant idea of using silicone to seal it.

[reefgirl189]

Originally Posted by sunoka

I inspect electrical and work closely with CSA....you need to throw the pump in the garbage it is unsafe for your fish and your home ! Are you GFI protected ?

Yes the sump room is GFI protected. Sigh... I knew that the cable was no good and it shouldn't be used.. I'm just a bit upset that I wasted the money... I should have just bought a brand new pump...

ETA: I think I'll contact Tunze and see if they can replace the cable on it for me...

[Lampshade]

IF it's that bad, cut the cable where it's freyed, solder both wires together, heat shrink each wire, and heat shrink the cable a good 6" up on both sides. IT's only 18/24VDC and protected by the controller. So even if you do a terrible mess and have water get in, you won't be frying your fish.

If it's 120V then yes, it could be a safety hazard, and I would be iffy about the repair.

[lockrookie]

Originally Posted by reefgirl189

Yes the sump room is GFI protected. Sigh... I knew that the cable was no good and it shouldn't be used.. I'm just a bit upset that I wasted the money... I should have just bought a brand new pump...

dont sweat it i bought a couple powerheads from a guy that ended up being garbage. but it is better to toss and mark it up as an oops than get electricuted by your pump your safetty and teh sfety of your system is nuber one money can be remade human cloneing not so easy.

[reef-keeper]

If the powerhead is glued you should just tossed away. If it is disassemable you can buy a new molded power cord from Electrionic Connections on the south side in Edmonton and replace the cord. The last cord I bought was $6.99.