Hot fills

[checkyourhopper]

I have a MaxFlow 68/4500 that seems to have a rather annoying problem of loosing quite a bit of psi after a fill. I know about the whole deal of hot fills, but I'm loosing close to 1500 psi sometimes when the marker sits for more than 30 minutes between games. And I'm pretty sure that I don't have a slow leak somewhere because the tank holds air over night. It's getting really frustrating to have to run back to the air station to refill every 30 minutes or so between games. Loosing a few hundred psi is normal, but 1500? That just doesn't sound right.

Anyone know if there is something I can do to improve this to stop loosing so much psi?

[FrEaKShow111]

well if you're losing 1500 psi you have a leak. its probably a slow leak on your gun and not your tank. either check the fittings on your gun yourself or have your local pro shop do it but whatever you do, DON'T use teflon tape on your impulse, use locktite.

[checkyourhopper]

Hmmm...

That's a good point. It could be my marker and not my tank. That seems to make sense. What's a good way to check for a slow leak on the marker, especially when you don't know where it might be coming from. I haven't been able to hear or feel a leak on the marker but it might be so slow that it's hard to detect.

[StealthElephant]

put it under water and look for air bubbles :crazy:

[Skog]

not a good idea with an electro!

but seriously, you can put the macro line under water, or simply wet your finger and put a drop or 2 of water in places that it might be coming from

[Deep Sixx]

Use a couple of drops of soapy water on your fittings. If there's even the smallest leak, it'll bubble like crazy. Do it on all fittings that are pressurized. Just don't get the water inside.

D6

[checkyourhopper]

When you guys say "fittings," what are you referring too? the part that connects my macro line to the reg and my gas-through grip? or like where the front valve cap connects with the body? or just everything on the gun where air passes through?

anybody have any common suspects that cause slow leaks? i bought a New Designz front valve cap recently and I wonder if the seal isn't tight enough and maybe I should lube the o-ring on that sucker. by the way, those valve caps really work. that upgrade increaed my velocity by like 25 fps. i had to dial down my maxflow to 125 psi just to compensate for the increase in velocity.

[majinbuu]

this is little off the initial topic, but instead of decreasing your psi, keep it at 180 or so and lower your dwell. that should give you better efficiency.

[checkyourhopper]

Okay, somebody explain this to me because I have never understood this...

Why is keeping my psi at 180 and lowering my dwell equate to having a marker that is more efficient? It just seems to make more sense to me that the lower I have my psi, the more efficient the marker is because it takes less psi to fire the paintballs. I though the goal of upgrading certain parts on the marker was to make it functionwith less psi. For example, I know for a fact that the Stange Vision Impulses run at 110 psi. So I just automatically assumed that the closer I can get to 110 psi the better for me.

[Skog]

as a general rule:

high pressure=high efficiency
low pressure=low efficiency

you see if the gas is at a higher pressure then less of it is required to put the a certain amount of pressure (Read: velocity) on the ball.

generally a lot of upgrades do allow you to decrease your pressure, this is because they improve your efficiency allowing you to decrease your pressure whilst still getting the good efficiency.

don't get me wrong, there are advantages to low pressure, but efficiency is not one of them.

having low pressure means that paint won't break in the barrel as often, and means that you are less likely to chop

the main reason that people really want ridiculously low pressure is that if you get it low enough then your bolt will actually bounce off paint instead of chopping it, but this requires REALLY low pressure.

The reason that people are deadfast on 180psi is that that is pretty much the maximum safe operating pressure for an impulse, as if you go much higher then any small spikes may be enough to damage your solenoid. You may hear about people with higher pressures but they will have upgraded their imps to have an LPR (low pressure regulator). These allow you to keep the air supply to your solenoid at a safe pressure whilst increasing the pressure of the gas that fires the paintball to about 230-240psi to give you better efficiency.

I hope that this helps explain the whole high pressure/low pressure thing.

btw feel free to PM me with any other Impulse related questions

[checkyourhopper]

That's makes sense. Thanks a bunch for the explanation. I appreciate it.

I never wanted a lpr before because I thought all they were just a fad and all they really did was reduce the kick on the marker. But after what you wrote, I'm thinking maybe I should look into one.

[Skog]

all i am going to say is that for an upgrade to have this much hype whilst looking sooo ugly it has to be really really useful and do a lot for your marker.

ok, thats not all i am going to say, as you don't know that much about lpr's i might as well tell you the rest:

they do everything i said in my earlier post, as well as reducing kick, increasing the cycle rate and they also eliminate bolt stick (allowing you to dry fire), as well as decreasing the sound your marker makes.

basically they rock, its that simple, thats why they are the best solenoid optimiser out there