Grajan
Contributor
I need to trim up a new gear configuration and I was wondering if any of the Houston dive shops run a salt water pool?
Thanks
Thanks
Is there a salt water pool in Houston?
- Thread starter Grajan
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Hi, Graham,
Haven't seen you around in ages! Haven't heard of one, but I'll ask some LDS-Owner friends.
Haven't seen you around in ages! Haven't heard of one, but I'll ask some LDS-Owner friends.
Why the interest in a salt pool?
OP
Grajan
Contributor
Just makes it easier to sort out weighting. I hate having to do it on the first boat dive of a trip and I'm not smart enough to work it out from fresh water.....
BJD - likewise. You going to the happy hour on the 3rd?
BJD - likewise. You going to the happy hour on the 3rd?
I dive salt and fresh water locally and switch a lot. I have found that by keeping the differential weight central (in my integrated pockets) I can reconfigure easily.
In my case I run 6 pounds more in the ocean so I have 3 pounds in each integrated pocket. The rest is on my belt and in my trim pockets. When I get to the lake I pull the integrated pockets and I'm good to go. I still have enough ditchable weight on the belt to cover that function just in case.
In case you didn't come across this the difference is based on the specific gravity difference in the waters. Salt water being 1.026 Vs fresh water being 1.00. Since your displacement is always the same it's just math. Find your total dry pre-dive weight, suit, gear, you, full cylinder and freshwater weight requirement. Mulitiply by .026 ( or use 1 pound for every 40) and add that for the ocean. For most divers it's between 5-8 pounds.
We do have one salt water pool locally but even that is only at 50% of ocean salinity and you need to make partrial allowance.
Pete
In my case I run 6 pounds more in the ocean so I have 3 pounds in each integrated pocket. The rest is on my belt and in my trim pockets. When I get to the lake I pull the integrated pockets and I'm good to go. I still have enough ditchable weight on the belt to cover that function just in case.
In case you didn't come across this the difference is based on the specific gravity difference in the waters. Salt water being 1.026 Vs fresh water being 1.00. Since your displacement is always the same it's just math. Find your total dry pre-dive weight, suit, gear, you, full cylinder and freshwater weight requirement. Mulitiply by .026 ( or use 1 pound for every 40) and add that for the ocean. For most divers it's between 5-8 pounds.
We do have one salt water pool locally but even that is only at 50% of ocean salinity and you need to make partrial allowance.
Pete
The highest concentration of salt a salt pool will run is 5000ppm. Most run in the 3000 range. Pete has a better idea.
OP
Grajan
Contributor
OK - good plan - thanks for the math. I will leap into my (very cold) pool later this week and work it from there.
LaminarFlow
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I cannot speak for a pool but I have been in Offatt's Bayou at Galveston and it almost qualifies. It's just not really close is the problem.
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