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We're going to be hitting it pretty close to slack. How deep is it at the end of the pilings ("dock")? I haven't been there in years and my previous dives there topped out at 70 FSW. Is 132 FSW easily obtainable without finning a mile?Nailer99 wrote: make damn sure you hit it at slack on a low exchange- the current there can be absolutely ferocious.
Coolio. What is your gas plan for the dive? Personally, I'd reserve 60 cubic feet of gas to safely get you and your buddy back to the surface from that depth if the fit hits the shan, so to speak . . .Seth T. wrote:132 is the max recreational depth (5 atmospheres). No facination, just fun. I haven't been that deep in quite a while, kinda wanted to give it a shot. You are correct though, if the tide exchange/current is going to be a problem, I will absolutely level off far above 132. I'm certainly NOT stupid!
(Well, except with it comes to diving naked in our waters.)
Tide charts are fairly useless ... especially at this site, due to the topography of the site.Seth T. wrote:Okay, so here's an obvious dumb question: how do you tell if it's going to be a "bad" exchange day? I use THIS site for the tide tables. We were planning splashing just before high tide. Please educate me. (Be kind!)
Okay, that makes sense. Any recommended sites to get these?Grateful Diver wrote: Use current charts instead ... and at the oil docks, there are substantial corrections that you will need to apply. Not sure if it's SBF or SBE, because I don't dive the site often enough to keep that info in my head ... but one of the corrections is for more than an hour beyond the actual predicted slack.
... Bob (Grateful Diver)
This is the site I'd recommend ...Seth T. wrote:Okay, that makes sense. Any recommended sites to get these?Grateful Diver wrote: Use current charts instead ... and at the oil docks, there are substantial corrections that you will need to apply. Not sure if it's SBF or SBE, because I don't dive the site often enough to keep that info in my head ... but one of the corrections is for more than an hour beyond the actual predicted slack.
... Bob (Grateful Diver)
I'll see how bad it is. I have no problem keeping our depth to 50 FSW or less. If it's brutal, we'll just head down the road to EUWP!
They explain it in the book better than I can, but they mean the amount of time to add or subtract to the times from the buoy at Admiraly inlet- slack before ebb and slack before flood have different corrections at each site.Seth T. wrote:And the "corrections" mean what?Nailer99 wrote: Then you need to know the current corrections for the site you wanna dive-
Take the reference station slack time and add of subtract the correction factor to get the predicted slack at the subordinate station. For the oil dock there is no nearby NOAA subordinate station. However Steve Fischnaller has spent a fair number of days out there looking at the water swish back and forth. So just use his corrections factors. The reference station for the oil dock is Bush Point / Admiralty Inlet.Seth T. wrote:And the "corrections" mean what?Nailer99 wrote: Then you need to know the current corrections for the site you wanna dive-