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PostPosted: Sun Aug 05, 2018 2:42 pm 
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Joined: Mon Mar 26, 2018 9:13 pm
Posts: 9
Hi I’m new to pcp and I just bought my first one and I was wondering if it’s bad to leave the bottle on and let the gun sit for a long time with air in it? Or do you guys take the bottles off?


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PostPosted: Sun Aug 05, 2018 2:50 pm 
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Joined: Mon Aug 08, 2016 7:23 am
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Location: Somewheres near the Atlantic
It's fine to leave them on.


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PostPosted: Mon Aug 06, 2018 7:57 am 
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Joined: Mon Mar 26, 2018 9:13 pm
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Ok thanks good to know. I wasn’t sure because when I was into paintball all my guns had on off valves and we would let the air out of the guns


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PostPosted: Mon Aug 06, 2018 2:01 pm 
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Joined: Mon Feb 11, 2013 12:46 am
Posts: 4052
depends how long your talking about
if its for a very long period of time like weeks or months then id say no don't do it
because it puts a great amount of pressure on the seals...especially your stem seal
even delrin seals will deform or create a unwanted grove from long time pressure on them

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PostPosted: Mon Aug 06, 2018 3:29 pm 
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Joined: Mon Mar 26, 2018 9:13 pm
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Ok thanks for the info


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PostPosted: Mon Aug 06, 2018 4:55 pm 
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Joined: Wed Oct 17, 2007 3:27 am
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Location: Winnipeg, Canada
There's probably a fine line to walk here.
The factory pcp's I ordered on-line shipped with 300-500 psi in the tubes, so a little helps keep the seals up.
I'm assuming your bottle has some sort of shut off/disconnect on it. If the output is regulated to 850 psi or so, I don't see a potential problem.
I've got a home built un-regulated QB/AR pcp here that is usually stored with around 900-1200 psi in it, and no problems with the valve internals over 6 years. No sign of grooving on the delrin parts or o-rings.

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PostPosted: Mon Aug 06, 2018 6:55 pm 
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Joined: Sat Jan 25, 2014 9:16 pm
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Location: United States
When I first read I thought you meant shooting a pcp w/ a scuba/fill tank attached, which is what a lotta peep do. You're talking about the oem tank that's part of the gun right? I rekon it depends on the gun but I can't imagine it would hurt it since it's spozed to be there doing exactly that. If there were a neg I'd imagine it would be leakage since many/most guns leak a little, but if it's a lot then I'd simply tear it apart and fix it b/c I'd want it ready for instant zombie defense. Gotta be ready now! None of this locked up, ammo stored seperately and all that bs like the libs would like. Libs are so stupid...
Anyhoo, I have a Marauder and for > a year it sat untouched w/ a full charge. Well, it started out full @ 3k, then it was like 2k after that time, but it hurt nadda. I took apart to do some mods and the valve was perfectly fine, as were all the O-rings, so it did not care one bit. My guess is the O-rings would crack from old age and leak b4 anything else.
One thing that does concern me bout leaving a gun filled is corrosion. I saw pix of Discovery where the guy was not drying his air and the insides are just awful! Not sure how old his gun was or if there were other factors but I don't want that to be me, or anyone here. When I left mine filled it was with "wet" air and I left it on purpose b/c aside from a leak check I wanted to see if it would start corroding so I could work onna fix, but it was like new inside. I also saw zero moisture in it, which I didn't expect sicne the hand pump I used had lots of water when I vented it. So regardless if you leave it sit, be wary of water.
Out of curiousity what gun do you have?


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PostPosted: Tue Aug 07, 2018 1:00 pm 
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Joined: Mon Mar 26, 2018 9:13 pm
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Ok thanks. I just bought a fx impact x


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