Sidemount - SPG and Transmitter - HP Splitter? Button SPG?

[VsubT]

Did some searching and found SPG vs. AI transmitter discussions for a variety of configurations, but not much specifically on setting up sidemount regs for both SPG and AI transmitters. I'm new to sidemount and working through the gear setup process with the eventual plan to use this configuration in caves. Using a Hollis K2 rig with steel HP100/LP85 tanks, if that's helpful.

My initial preference is to have both SPG and transmitter on each tank, but I'd be comfortable with just one or the other if that makes more sense. Leaning toward using an AI transmitter on a short HP hose with QD fittings (in the typical SPG position) plus a button SPG on the opposite side.

I'm aware of the potential additional failure points with the button SPG and QD fittings, and I'm generally good with both of those items from using them with other configurations. Any specific drawbacks to this setup for sidemount?

Also, is anyone using an HP splitter for SPG and AI transmitter on sidemount regs? If so, would love to see some pics of your setup and get your thoughts on how you like it.

Thanks,

Lance

 

[rhwestfall]

 

[grantctobin]

Glad someone was finally brave enough to ask this question.

One or other. Both is dumb.

Spg Transmitter Scubaboard

For those who think it's easier to annoy you than to Google 'Spg transmitter scubaboard' themselves.

letmegooglethat.com

 

[PEDiver]

Here we go again...

 

[Valerii Vakshul]

HP TWIN ADAPTER

The HP twin adaptor allows you to use both an SPG and a transmitter from a single High-Pressure port. This is especially useful for 1st stages that only have a single HP port. The HP twin adaptor utilizes a standard 7/16” thread and is suitable for use on all manufacturers 1st stages. Allows you...

uk.apeksdiving.com

my love, I use it together with pressure gauges, pressure gauges on hoses

 

[gmerick]

Points of failure - 9 o-rings per side, two hoses. Failures so far - 3 hose failures, 2 transmitter failures, 2 shattered gauge faces. Upgrades - Stainless steel hoses, Swift transmitters. Aborted dives - ZERO

 

[grantctobin]

View attachment 867974

Who on earth taught you this? What a mess.

 

[PEDiver]

Are those two 6" hoses...basically spliced together...making a 12" HP hose? I've truly seen it all

 

[iliketopetsharks]

I'd add a j-valve, just for good measure...

 

[InWay2Deep]

Extreme (and Not So Extreme) Multistage Sidemount Cave Diving with AI

Photo courtesy of Natalie Gibb | Under the Jungle. Soft flakes of microbial goo slapped my face as I scootered through them at high speed on my DPV. My exploration partner Vincent Rouquette-Cathala and I were back on our DPVs at our massive exploration project, Pandora, returning from an end of...

shearwater.com