5mm or 7mm?

[Marie13]

I had a Henderson 7mm years ago. Coldest water was 52 degrees and I was getting cold after a while.
Local dive shop says 5mm is fine for Ohio quarries.
In your experience how cold can a 5mm go to?

Haha. I've dived those OH quarries. If you want longer, more frequent dives, either a semi-dry or a drysuit. 5mm? Hah!

 

[Joris Vd]

I had a Henderson 7mm years ago. Coldest water was 52 degrees and I was getting cold after a while.
Local dive shop says 5mm is fine for Ohio quarries.
In your experience how cold can a 5mm go to?

I've never been to Ohio, but here is a review I found from a divesite for Gilboa Quarry:

went scuba diving here on 8/17/2019. Average viz: 36-40ft/11-12m. Water temp: 61-65°F/16-18°C.
Went for a teaching dive with my wife. She’s only dove Caribbean and I was trying to convince her Quarries were equally - but differently - good. I failed. LoL She did not like it.

I wore a 4/3 wet suit with gloves and boots. No hood. She wore Farmer John 6.5, hood, gloves, boots and still got cold around 35-ft deep. I would guess the temperature was around 55-60 down that deep because I wasn’t really that cold.

Visibility was around 35-40 feet even though we got in the water around 1pm and there were A LOT of other divers. Will be going back.


What i'm trying to say is: it's super subjective, but if you are someone who's prone to getting cold like this person's wife who will probably never want to dive a quarry again, I see no reason not to buy the 7mm - a semi-dry or drysuit depending what you want.

The fact that it's over 30meters deep makes me think, you should probably go for the 7mil just to be safe. Heck I even dive a 7mm in the mediterranean, over time it will compress and you got yourself a nice 5mm for the holidays.

 

[VikingDives]

8 dives in a single day??? You go down touch bottom and come up to the surface and go down again and do it eight times?

It was a long day... one was a bounce dive iirc, the remainder were training dives with open water classes. I did 7 dives the next day. It was during the summer a few years ago, so the details have faded, but there was probably 12-14 hours of sunlight. Maybe there was a night dive, I don't recall.

I slept really well though.