AT Pro O-ring seals

[Viddy]

When you got your AT Pro did you notice how the O-rings in the headphones jack, coil jack, and battery compartment had a slight lube on them and it slowly wears away after time? Water can get into the smallest places and nothing can fry a good detector like a little bit of water.

When I was down the Outer Banks, NC, I wanted to take my detector on the beach near the water line and new it might get hit by some waves as well as take it in the surf TOTALLY under water. I just have the stock black headphones, so I knew I could totally submerge the AT Pro but just had to keep my head above the water.

My main worry was... "are the O-rings and seals going to hold up"? I had the AT Pro in the rain a few times and it got soaked but NOTHING like having it totally submerged underwater or in the OCEAN!

I found a local dive shop and he said 'they use a silicon lube on their dive equipment and tanks and he has sold some to the local metal detecting guys before'. I asked if it was 'any good and would seal O-rings better?'. His reply was 'oh yeah! When you are diving, you can't aford any mistakes or failures'.

I bought a small container (as seen in the picture) and tried it out.

The results.......?

• It puts a small coating on the O-ring and plastic and you can tell anything slid over the O-ring slides very well in place without any binding or rolling the O-ring.
• You can tell it will take up any small gaps or imperfections in the plastic or O-ring and keep it water tight.
• The lube is not like WD-40 or vaseline, or oil, but like the stock lube that is on the AT Pro when you get it.
• If anything (sand, dust, dirt, etc.) is in there you can tell it won't gouge up or cut into the plastic or O-ring as it will slide the debris out of the way when sealing iteself.

Nothing like some peace of mind when in the water, and knowing your detector is sealed as tight. The AT Pro passed with flying colors and the seals didn't leak a drop!I had the AT Pro totally submerged and waves washing over it all day at the beach and day after day for the week.

I won't hesitate to recommend the silicon lube or take the AT Pro in the drink....

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[Jcar]

You can also get little containers of silicone lube in the plumbing department at Home Depot or Lowes.

[Sandman]

This just isn't for us divers but anyone that uses O rings. It is also the best thing to apply to the connectors of the older water detectors for the coils. It is best to apply some to the Excal's connector also. Don't forget to apply some to the faceplate O ring of White's detectors. I even applied some to the battery door O ring on the CZ20 and 1280 though it doesn't need it as no water can fry the guts of those units. Prices are cheaper at Lowes, etc than dive shops but how much is your detector worth?

[Viddy]

yeah. that 4oz container only cost $2.50 and a little goes a long long way! that will last me a decade!

[Bart@Big Boys Hobbies]

I am always a fan of lubing o rings. Less wear and tear.

[Frank1960]

Thanks alot guys I will pick some of this up for my AT Pro.

[lookindown]

You can also get little containers of silicone lube in the plumbing department at Home Depot or Lowes.

Got mine at Lowes last year. I keep my AT pro underwater for hours at a time. Sopme people say they think its only water resistant...the AT is waterproof.

[Ace350]

I use dielectric grease. You can get it at any auto store and is made for what we use it for.

[Zodiacdiverdave]

One more helpful hint, when you lub up your O ring it is best to completely remove it from the connector by pinching the sides and forcing the o ring up on the groove so you can grab it. Do not use a pick or anything sharp as it might cut the ring or damage the groove. When the o ring is out use a lint free cloth and really clean out the groove, just one grain of sand can ruin your whole day.
Oh yea, don't go nuts on the grease, just enough to lub it up. The grease doesn't stop the water it helps allow the o ring to slide into the openings that require sealing and to fit tight to the surfaces.
ZDD

[TheElementOfSand]

From what I understand the AT PRO is completely water proof to 10 foot even with the headphones and coil removed. The Nice O-Ring is just there to seal water out of the headphone and coil jacks. I do not disagree with keeping them lubed especially if you are a water hunter.