Pee valve explaination

[LanceRiley]

Hi im new to drysuit diving. A bit confused with the pee valve.

1.) External bolt open, i blow on tube, i can feel air exit the bolt
2.) external bolt close, i blow, i cant blow. Since everything is close
3.) external bolt close, i can suck in air, since its sucking air inside the suit via balance valve.

Is all these correct?

Scenario…

I put on mysuit. I dont pee. So the whole tube has air inside. I go down say 50m. With that depth air is compressed… i assume the balance valve will let air into the tube so it wont collapse. Now i surface…. The air in the tube expands…. How does it exit? I assume from the external open bolt? What if i close that bolt?

What if i descend with the bolt open. Will sea water get inside?

I ask this since…. Everytime i dive without peeing 1st (air in the tube) i end up the dive with the catheter collapsed.

 

[grantctobin]

Which pee valve?

 

[LanceRiley]

Which pee valve?

Navyfel suit… the peevalve has their logo. I heard its a sitech?

Did the check seems to be balanced

 

[Rich1280]

You're correct, the duckbill valve let's air in as you descend. The mushroom valve under the screw cap prevents water coming in. As you ascend the gas will expand, but there isnt very much. Just leave it unscrewed a bit all the time and let it vent that way is the easiest way I find.
I had one of those valves, worked very well for a while then the duckbill went and I couldn't seem to find a right size replacement.

Rich

 

[LanceRiley]

You're correct, the duckbill valve let's air in as you descend. The mushroom valve under the screw cap prevents water coming in. As you ascend the gas will expand, but there isnt very much. Just leave it unscrewed a bit all the time and let it vent that way is the easiest way I find.
I had one of those valves, worked very well for a while then the duckbill went and I couldn't seem to find a right size replacement.

Rich

My problem is the wideband. Colapses. Theres air space between the tube and my anatomy.

The wideband tube i cut about half so the barb cant collapse or twist it.
But putting on the wideband there is a bit of space between me and my anatomy. This is the area that i find collapsed after i undress.

So would it be ok to dive with the external bolt closed? Until i pee. Ill open it? Or open it when i ascend?

 

[Boarderguy]

My problem is the wideband. Colapses. Theres air space between the tube and my anatomy.

The wideband tube i cut about half so the barb cant collapse or twist it.
But putting on the wideband there is a bit of space between me and my anatomy. This is the area that i find collapsed after i undress.

So would it be ok to dive with the external bolt closed? Until i pee. Ill open it? Or open it when i ascend?

Wideband only refers to the length, not the girth. If there's extra material around that could cause issue. If the extra is between the tip and your tip then that's mostly normal. The small tube you connect to is too long for most barbs and will collapse or fold over if not cut. I trim that part in half before putting my quick disconnect on.

Do some reading in this thread.

Thread 'we're all friends here... let's talk p valves and sensitive bits...'

Oct 7, 2022

I just purchased my first dry suit yesterday from DUI and I won't have it for a few months but I did get the Light Monkey P-valve option. I've heard about a "quick connect" option and I know that I need a catheter but other than that I know nothing...

Questions:
1. Can someone tell me about the quick connect? Sounds like a good idea. What is it, where can I buy it?
2. Catheters, I've done some reading on size, putting it on, etc, but what do you buy? For example, I go to a medical company website and I see several styles but the tips look a little different. Is there a specific...

• Merida Cave Diver
• Replies: 257
• Forum: Exposure Suits

 

[Brett Hatch]

Are you ending the dives with pee inside your suit? Or coming up dry and just noticing that the catheter has become smooshed a bit during the dive?

Assuming you're coming up wet... you want to get the end of yourself reasonably close to the end of the catheter. You also want the barb to be pretty close to yourself, which often means cutting the catheter tube in half, as you're doing (and as Boarderguy suggests)

One other thing comes to mind. One is, you want the end of the catheter and the tube to not get kinked at all. This might involve routing your P-valve tube differently. For me, I found that routing the tube from the P-valve, up close to my belly button, over my drysuit leggings, and down to myself, with myself pointing up. This is not as comfortable for walking around as it is to have myself pointing down, but it is less prone to kinking the catheter, and once I'm in the water I barely notice the difference

 

[LanceRiley]

Wideband only refers to the length, not the girth. If there's extra material around that could cause issue. If the extra is between the tip and your tip then that's mostly normal. The small tube you connect to is too long for most barbs and will collapse or fold over if not cut. I trim that part in half before putting my quick disconnect on.

Do some reading in this thread.

Thread 'we're all friends here... let's talk p valves and sensitive bits...'

Oct 7, 2022

I just purchased my first dry suit yesterday from DUI and I won't have it for a few months but I did get the Light Monkey P-valve option. I've heard about a "quick connect" option and I know that I need a catheter but other than that I know nothing...

Questions:
1. Can someone tell me about the quick connect? Sounds like a good idea. What is it, where can I buy it?
2. Catheters, I've done some reading on size, putting it on, etc, but what do you buy? For example, I go to a medical company website and I see several styles but the tips look a little different. Is there a specific...

• Merida Cave Diver
• Replies: 257
• Forum: Exposure Suits

yes... ive done all that... the wideband hose, i cut it in half. and after installing there is air inbetween me and the barb.

that area collapses after a tech dive... or even a 30m dive. the only time it didnt' collapse when i peed BEFORE the dive....

is there any chance my drysuit at depth is compresse such that the balance valve in the drysuit coudnt' balance the pressure in the pee tube? yes the balanced is working... tried sucking on the pipe while the external nut was close.. i could get air...

 

[LanceRiley]

Are you ending the dives with pee inside your suit? Or coming up dry and just noticing that the catheter has become smooshed a bit during the dive?

Assuming you're coming up wet... you want to get the end of yourself reasonably close to the end of the catheter. You also want the barb to be pretty close to yourself, which often means cutting the catheter tube in half, as you're doing (and as Boarderguy suggests)

One other thing comes to mind. One is, you want the end of the catheter and the tube to not get kinked at all. This might involve routing your P-valve tube differently. For me, I found that routing the tube from the P-valve, up close to my belly button, over my drysuit leggings, and down to myself, with myself pointing up. This is not as comfortable for walking around as it is to have myself pointing down, but it is less prone to kinking the catheter, and once I'm in the water I barely notice the difference

hi... im ending the dive wanting to pee... and when i do.. catheter is collapsed... if i force it... it will end up in a blowout... pee on the sides of shaft.. which has already happened. i assume i got the right size wideband.... the bigger size would wrinkle on the shaft.. .while the next smaller size was neat.

i do have my anatomy at 12 o clock... although.. i think 11 o clock seems to be working better... as you suggested

sometimes when im done diving .... and undress. anatomy is sometimes at 1oclock...

i did try taping the pee tube with medical tape... it did help...


do we close the outer nut while diving?
Descending woudn't be a problem since the balance valve with get air from inside the suit... but what about if we start ascending.... the expanding air... where will it go if the outer nut is closed?

or do we just keep the outer nut open once we're suited up?

 

[pisauron]

hi... im ending the dive wanting to pee... and when i do.. catheter is collapsed... if i force it... it will end up in a blowout... pee on the sides of shaft.. which has already happened. i assume i got the right size wideband.... the bigger size would wrinkle on the shaft.. .while the next smaller size was neat.

i do have my anatomy at 12 o clock... although.. i think 11 o clock seems to be working better... as you suggested

sometimes when im done diving .... and undress. anatomy is sometimes at 1oclock...

i did try taping the pee tube with medical tape... it did help...


do we close the outer nut while diving?
Descending woudn't be a problem since the balance valve with get air from inside the suit... but what about if we start ascending.... the expanding air... where will it go if the outer nut is closed?

or do we just keep the outer nut open once we're suited up?

I found it risky to pee at the end of the dive. Especially in a vertical position.
I always try to pee horizontal and at some depth. Usually at the last stop.