Stirrup Pumps

[Halimede]

Interested in this. I decided to get a second (smaller) bottle as a backup instead because I live in Cumbria; a pretty damp part of the country and I worry about the water vapour which is always in air, getting into my guns. Where I used to work (now retired) we ran nice German 11kw industrial compressors and removed about 30 litres of condensate from each on most damp or rainy days. We cooled the air before it got to the dryer.
How much water does a hand or portable electric pump remove? I imagine that using a hand pump, one would have to pump slowly and have the trap quite a long way from the pump to get the air cool enough to drop much moisture out of it. How effectively do the portable electric compressors do this? A 300 bar heat exchanger sounds a bit special; or am I missing something?
I have the luxury of using bottled air and I get them filled at a dive centre. This is because they supply breathing air and so far as I know; breathing air is always well filtered and dried.

[StellaArtois Sr]

At our range we have had many people turn up with a stirrup pump. We say to them about buying a bottle but
they reply I don't mind doing this I do it all the time at home in the garden.

I then say it's one thing doing it twice in the garden but when you're down here all day and you do it 5 or 6 times
you will change your mind, no no no I am happy for the exercise.

The next time they turn up with a bottle.

Ade

[angrybear]

I know a few years back the Brocock & Webley stirrup pumps were badged FX made, & the instruction leaflet still said FX on it,

Most moisture is removed by condensation due to expansion cooling, which is why the vent is at the base & when you vent it, drops of water come out, (ps always leave the vent open after use)
generally the inline filters are for particulates not moisture.

The main differences are the number of stages, good ones now are 4 or 5 stage, and the basic build quality / parts availability.

[Bellycrawler]

When new to pcp's, a S200 I had a hills pump, hard work. Next pcp was a S10. I ditched the pump for a dive tank. Stayed with the tank ever since. Over time reading about dry air / filters etc confirmed to me a dive tank was the best option.

[Bunny-on-Bunnyr]

I use a 3 stage BSA pump, 200bar tubes like AirArms are a doddle But I do have to jump up n down on it to get 230bar into my Wildcat... so I dont, 200bar is enough shots for me to get very bored.
The cheap single action pumps from China... not good, the only way they could be more of a pain in the back-trumpet is if they were inserted there.
Moisture... Having just had my rifles re-sealed, I can report that my S310 and Ultra tubes are corrosion free after 4 and 3 years of pumping respectively.
Though...
I do store my pump in the coldest part of the coldest room in my abode along with my rifles. Wip is QR coupled to the pump - I put the blanking plug in, tighten the bleed, give it a few pumps and open the bleed to get any moisture out. Once pumping, I go half way then crack the bleed then start again, the other reason I dont fully charge the Wildcat is that things start to get Hot past 215ish.
And if I cant be bothered / everything Murphies at once / World Ends?
I got 9 springers to choose from

[aj]

I've just bought a vevor 3 stage pump off the bay as my Hills mk4 stopped working and even after changing all the seals and filters with their service kit it still refuses to work. I have a 7ltr cylinder and an elltech compressor but like to have a stirrup pump aswell... you can never have too many options.

[mjoseph]

I've only ever used a Hill mk4, so can't really comment on differences, but what I can say is that I used it to fill my R10 with no problems. You just need to learn the correct technique and take your time.

I would rather use a bottle to be honest, but during lock down, I didn't have much choice.

I've now got a Hill compressor, but I wouldn't get rid of the pump, just in case.

Cheers,



Mark.