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bluesj

Cheap pcp hand pumps

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Hi all, looks like I have to invest in a new pump. Has anyone had any experience with the cheap (£50 or less) ebay offerings? 

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Yep got one. Excellent bit of kit, came with spares, and just as easy as the fx and webleys I sold on. Just from what I understand is don't try doing 200bar in 1 sitting as the air and seals will get to hot. 

Would buy another if needed, but doubt I will

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i bought the very same-£38 from ebay. works well, but when i stripped my gun to replace a seal there was a lot of moisture in the main reservoir. no corrosion though because the cylinder was coated with silicon oil. I charged the gun with a dive bottle after the rebuild built the seal still leaked, so after stripping again i found moisture in the gun again -very surprised after filling from a new dive bottle. A bit of googling revealed from scuba diving sites that condensation happens inside a diving bottle when its filled and apparently theres not a lot can be done about it-hence the inspections of diving bottles. Compressed air is, or gets warm. Warm air meets cold metal = condensation. this happens to the dive bottle when it is filled at your local shop, and to your gun when you fill it from the diving bottle. I now wait for the replies saying moisture traps, filtered air etc. but as far as i could find out its not something that can be completely avoided. (my pump has a moisture trap) Back to  the original question- in my experience they are a good buy but the slower you pump the cooler the air stays so keeping condensation to a minimum. (look a the webley accupump-looks the same just with webley branded on it and its about £100 more!!) you pay your money and take your choice!

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Have a look on YOU TUBE loads of vids on the cheap pumps and rebuilding them. Aliexpress.com had an offer on them £23.00 free p&p. All staineless steel. Last week.

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