drying air with a hand pump

[svo]

what are you all doing to dry the air on a hand pump? I have a Hill MK5 with the air drying system- is there something to do in addition? My concern is long term moisture in the airgun and the ensuing damage (dont suspect there is any but I want to prevent it from being an issue)

thanks in advance

 

[Alderman]

I wonder if an in-line filter used for a compressor would work?

 

[Dankleinman]

Yes it will work but you will have to fill the in line filter as well when your pumping which would get old real fast . It's already a pain in the butt to hand pump let alone having to fill the filter every time ....



dan 

 

[Dankleinman]

 Can you just add the dry air system to the pump or did you have to buy it with the dry air system on the pump 

 

[Guest]

That filter is on the wrong side so it is useless. JMHO

 

[MMCM13]

One idea is to use air from a shop compressor, regulated to a low input, maybe 2-5 psi. Air has already been compressed and moisture condensed into compressor tank. Other way is to put a heat exchanger, a small one (like a auto trans cooler, or a coil of copper tube) in a freezer. Draw air from outside freezer through heat exchanger, through a tube, to pump, air would go below dew point and dry it, water would stay in tube or in condenser to be drained later. You could draw air from freezer, but it would frost up your freezer.

 

[Guest]

One idea is to use air from a shop compressor, regulated to a low input, maybe 2-5 psi. Air has already been compressed and moisture condensed into compressor tank. Other way is to put a heat exchanger, a small one (like a auto trans cooler, or a coil of copper tube) in a freezer. Draw air from outside freezer through heat exchanger, through a tube, to pump, air would go below dew point and dry it, water would stay in tube or in condenser to be drained later. You could draw air from freezer, but it would frost up your freezer.

This is not condusive for HPA filtration. In line filters preferably with molecule shieves are the way to go.

 

[ImpactX]

Those drypac filter on the hills pump does nothing because its for the intake only. I have both mk3 and mk4 and still get moisture in my guns. Because the heat from the pump builds up moisture and it will go into your gun. What you need is a output filter. It helps to trap and capture the moisture before it goes into your gun.

 

[sirgilbert357]

I'm wondering all this as well. I'm about to buy a Benjamin Marauder and trying to decide if I should get that same Hill pump with the dry air system or go for a cheap compressor and spend a bit more to get a coalescing filter of some sort. Of course my wallet says to suck it up and hand pump my gun, but the other side of me says to just get a small compressor and some kind of filter. Thing is, I'd be pissed if I spend 450 bucks for a cheap compressor and it breaks in few months. That's literally money flushed down the toilet.

 

[sirgilbert357]

Those drypac filter on the hills pump does nothing because its for the intake only. I have both mk3 and mk4 and still get moisture in my guns. Because the heat from the pump builds up moisture and it will go into your gun. What you need is a output filter. It helps to trap and capture the moisture before it goes into your gun.

Interesting. Seems pretty useless then. WTH Hill?? Kind of seems shady for them to market it as a solution to getting water in your gun!

 

[svo]

is the idea on the hill pump to dry the intake air with the filter before it gets compressed so , if not completely dry, the air that is compressed has less moisture? If so, would it make sense to have both an intake and outflow filter?