Most reliable pump?

Yes they will all need to be rebuilt eventually. I have an inexpensive china pump. I don’t use it every day, but with 6pcp in house it got used often. Still works, now as backup only.
my experience tells me to never spend more than $100 on a hand pump.

Do a search and you will find countless threads
 
Recommend starting out with $50, or less, Chinese handpump, they work well and often come with rebuild parts. Be aware you might be stuck trying to unload a $300 handpump should you find, like many, that handpumping isn't for you. Better a $50 "back-up pump" in the closet, than a $300 one. WM
 
I got a cheap hand pump and soon found out that hand pumping didn't make shooting enjoyable for me. There are many options for low end and low cost compressors these days and if you keep them maintained and use them as they were intended, filling guns directly, you'll get your money's worth from them.
You'll hear stories from folks that they've been topping off their tanks for x number of years without a problem. And that's all good, until it isn't. ;)
 
Two choices.

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I have a Hill hand pump for the last three years that I use nearly daily during winter to pump up my Weihrauch HW44’s. All I have ever done is relube the main cylinder with silicone grease.

Similar experience here, although I would open my Hill MK3 occasionally to degunk it, back when I was using it regularly. I've had it since probably 2017-2018, and I used it as recently as about a year ago, just to see if it still works, and it did.... Pumped up a gun just fine.
 
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Several options have come to market in the past year or so. The YH has some strong competition.
Really? I don't think so. Don't get me wrong I am not an Yong Heng apologist, BUT, considering how cheap you can get them, how fast they fill, how cheap and easy they are to get parts and fix, if you know what you're doing, you can do a lot with Yong Hengs. Their problem is that the whole process does get to be a p.i.t.a. for sure, but they do a lot of work for a very small amount of money. Truthfully getting sick of it myself, I have three. They take up a lot of space, are noisy, and I'm not big on changing the oil, and it's mess. I always have air and am never down because of the backups. I wouldn't buy multiples of anything that cost more, that's for sure. I think the YH definitely has competition from the little bottle filling compressors, but not for filling big tanks on the cheap.
 
Really? I don't think so. Don't get me wrong I am not an Yong Heng apologist, BUT, considering how cheap you can get them, how fast they fill, how cheap and easy they are to get parts and fix, if you know what you're doing, you can do a lot with Yong Hengs. Their problem is that the whole process does get to be a p.i.t.a. for sure, but they do a lot of work for a very small amount of money. Truthfully getting sick of it myself, I have three. They take up a lot of space, are noisy, and I'm not big on changing the oil, and it's mess. I always have air and am never down because of the backups. I wouldn't buy multiples of anything that cost more, that's for sure. I think the YH definitely has competition from the little bottle filling compressors, but not for filling big tanks on the cheap.
Honestly, you start with "I don't think so" but the whole post reads like you agree, but with one possible exception - the word "cheap."

I don't have a dog in this - I'm a committed Shoebox user - but while the Yong Heng is clearly cheaper in terms of initial outlay of cash, things are looking like the GX-CS4 could be "cheaper" over the long term, like ten tears or so, if the longevity proves to be good - especially if one adds in the value of their time and the consistent "up time" of the unit. Initial indications are that it will be . . .

Add in the PITA factor, and if I had to abandon the Shoebox (unlikely, as I have two and plenty of spare parts), I would go with the CS4 (or maybe the 5 series, if the budget allowed it at the time). Twice the price seems worth it for what we get - sure it is slower, but so what? Honestly, I've never understood the desire for max speed on tank fills - I like the set it and forget it nature of my Shoebox compressors, as they do their thing while I do other things. No baby sitting required - not even needing to vent the lines on occasion as the air is fully dried before high pressure compression. I just start it and return at some future point when all is done to unhook things.
 
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I understand your points, and you are correct, I started with "I don't ""think"" so", which means I could certainly be wrong in the long term. Enterprising individuals that don't mind the work, or babysitting their compressors, can save a lot of cash with YH. Whether or not it's all worth it depends on personality and ability, and space and time factors. No cookie cutter answer. Never has been.
 
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I have my Yong Heng in a minimum hassle format and am happy with it. Nothing more than an O-ring has been needed after 4 years of filling my 45 minute bottle 1 to 2 times a month. I have the distilled water plus water wetter coolant in a sealed drywall bucket with two little radiators with fans on top. I don't change it. Sometimes in the summer I drop in a couple frozen soda bottles. I also have a fan on the motor. I change the oil once a year. When the bottle gets down around 3200 psi I flip a few switches and refill it. It takes up more space because it is not integrated but I have space in the storage room where it is.

But I agree the GX pumps look interesting. The CS2 might be the best for use away from home just because it's so small and light. Even the CS 4 is small enough to use this way and can still fill my bottle. The CS 5 is too heavy to be easily moved but it also fills bottles about as fast as the Yong Heng. But it costs about 3X. But still they are interesting.
 
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