How to damage your PCP rifle - a tutorial

Again with the chinese crap. It gets old. Trust me it's not the chinese crap that puts moisture into your gun. I've used cheap Chinese pump $40 on ebay. I've used American made Benjamin handpump $160. And I used top of the line hand pump the hill mk4 $280 with moisture intake filter. And all of them will put moisture into your gun over years of use. The moisture builds up over time. You need a output filter to combat moisture. Even high end compressor will have a filter in the output to combat moisture. The problem is you are not using a filter designed to remove moisture. Never use a handpump or compressor without a output filter. Your tutorial should be changed to, how to damage your gun...by not using the proper output filter. 

You will need a output filter. Hills handpump mk4 claim it remove 99% moisture. It is not true. It is on the intake side. Most of the moisture comes from the air being compress and heat. I've used the hill mk4 handpump for a year and my Benjamin marauder rifle have the same white salt looking stuff inside and droplets of water and rust.

For handpump I recommend either of these two. The small one wont be as efficient as the bigger black filter but it requires less pumping due to smaller size. The bigger black filter will requires more pumping since you will also have to fill the filter up along with the size of your guns tank or tube. 



For compressor I recommend this filter. It have desiccant beads to remove moisture and also active charcoal to help remove odors.

Agree, it is not the pump or compressor. It is the lack of filtration for moisture removal.

Again with the chinese crap. It gets old. Trust me it's not the chinese crap that puts moisture into your gun. I've used cheap Chinese pump $40 on ebay. I've used American made Benjamin handpump $160. And I used top of the line hand pump the hill mk4 $280 with moisture intake filter. And all of them will put moisture into your gun over years of use. The moisture builds up over time. You need a output filter to combat moisture. Even high end compressor will have a filter in the output to combat moisture. The problem is you are not using a filter designed to remove moisture. Never use a handpump or compressor without a output filter. Your tutorial should be changed to, how to damage your gun...by not using the proper output filter.

Click to expand...

I agree completely, even a compressor for filling a tire will create condensation. You need a filter.

Agree with earlier post. Water and moisture has absolutely nothing to do with the price of your pump.

Been said already, using any compressor without proper filtration is a mistake, does not matter where the compressor come from

And filtration will depend on your climate. WHere I live is dry and still I use 2 moisture and oil filters (the big golden ones), been using chinese compressors for 2 years now, and CERO Issues with several airguns (Including FX Impact, and I have checked the bottle / tube inside of all airguns I have ). I will never EVER charge an airgun direct from the compressor without filtration. 

Water is inevitable and filters help, but the best insurance is an intermediate bottle held vertically. You then charge the gun from the vertical bottle. Guys that charge directly from the compressor will always have this issue. It's called physics. The vertical bottle will act as a water condensation sump.

How to damage your PCP————Don’t shoot it enough

This is something I have been concerned about. I direct fill my Marauder with a Benjamin Traveler compressor. It has a small filter at the intake and a larger cylindrical cotton/fiber typer filter (like some of the ones pictured above) at the "output" of the compressor just where the air exits the compresseeor and enters the air line to the gun. I have pulled the filter after a couple of fills and it has been damp with moisture. I will dry it out before reuse. Is this type filter adequate enough. I'm sure it's better than nothing of course.

Check out Joe B's output filters... they are extremely well made and work incredibly well. 

My dehumidifier is set at 35% and nearly runs non stop on hot Summer days. I have to change the desicant in the filter unit about every 2 weeks(use it near daily). In the Winter months with the radiant heated floor,the desicant lasts 2 months or more before it turns pink. Humidity in the air is our enemy