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  1. Humdinger

    Question for Alkin W31 owners

    +1 on the DIN300 male adapter for your Alkin fill hose. I prefer the solid connection of the male DIN to the DIN300 female on your tank valve. Remove the hose and DIN300 male that is part of your tank's fill hose assembly to use the fill hose. One of my tanks has an Omega HP3 valve which fills...
  2. Humdinger

    Alkin Compressor, Any Issues

    How many hours do you run yours between oil changes? I only run mine about 5 hours a year or less so that would be overkill for me. Even in a commercial operation once a year oil changes are all that is necessary. When I do my annual oil change it still looks almost as clear as new oil. The...
  3. Humdinger

    Small mod to the CX GS4, cause I cant help myself

    Kudos to Helder 22 for an elegant mod. It's nice to have machinist skills and the equipment to implement them. If someone is patient and can wait 6-12 months the CS4-1 will be $550 and but the newer CS4-2 will have an upgrade that you've got to have. It never ends.
  4. Humdinger

    Careful when filling

    This post is a troll. Several years ago someone on this forum posted about a gold filter that "exploded". There was a straight line crack which implied there was a welded seam that failed. Thee are no seams on an aluminum filter. Tanks, filters and compressors need to be treated with...
  5. Humdinger

    GX CS4 fill times

    @F6Hawk, I agree with your post in this thread about fill times. However, my fill times are as close as potential buyers need to know in order to get a realistic idea of what the GX- CS4 can do. I am fully aware of the VanDerWaal effect on compressible gases. It's the reason that certain...
  6. Humdinger

    GX CS4 fill times

    GX factory literature rates the GX4 and GX4-1 air output rating at 11 liters per minute at 1 bar. That equates to 22 liters per hour @ 4500 psi or 310 bar. Most owners fill their SCBA tanks to 310 bar. That means a 6.8 liter tank X 310 bar holds 2108 liters of air @ 4500 psi. It takes 3...
  7. Humdinger

    Pest control - RAW HM1000x or FX Crown

    PRS and pesting are two opposite types of shooting requiring different types of air rifles. I'd much rather handle the light weight and balance of an FX Crown for pesting. The RAW would be the better choice of those two for PRS competition. Choose between those two disciplines to decide...
  8. Humdinger

    are the cheap compressors on ebay worth it ?

    This is a very generalized question that is impossible to give an answer that applies to everyone. The answer is yes and no. It's equivalent to asking what is the best cheap airgun on the internet. It depends. How much do you shoot PCPs? What is your budget? Do you own a tank? What size...
  9. Humdinger

    Affordable reliable compressor that the air gun market would embrace

    I'm 75 so a handpump would not be an option for me. Remember that a compressor forum will share more breakdown stories because owners want to get advice on repairs or chime in if they've experienced the same failures. Shoeboxes were slow filling but they were extremely reliable and easy to...
  10. Humdinger

    Affordable reliable compressor that the air gun market would embrace

    If you buy a Shoebox, make sure it's either the F8 or F10 version. The first generation Shoebox had a chain drive that was very noisy and was super slow filling. The second generation was called the Shoebox Max. It replaced the chain with a belt but it still had a primitive shutoff that had a...
  11. Humdinger

    Affordable reliable compressor that the air gun market would embrace

    The GX CS4 and CS4-I seem to be the best option for now in terms of affordable and vaule. I've never been an Omega compressor fan because of their cost versus their performance. If the CS4s do turn out to be durable and reliable in the long term then they would meet the criteria of what I...
  12. Humdinger

    Affordable reliable compressor that the air gun market would embrace

    It's sad that newbs consider fill speed more important than durability. What I liked about the Shoebox was the ease of setup for a fill and lack of maintenance. When the F10 reached $1,100 it was no longer competitive in the marketplace. There isn't much inside of a Shoebox. A large...
  13. Humdinger

    Affordable reliable compressor that the air gun market would embrace

    The least complicated and easiest to maintain air compressor was the Shoebox. It was made in the U.S. but was relatively expensive. It was manufactured on such a small scale that it was impossible to compete with the Chinese imports that drove Shoebox out of business. If a larger...
  14. Humdinger

    ALL your OPTIONS for Filling a PCP Airgun (Filters/Fill Stations/12V Compressors/Hand Pumps)

    +1 to @jarmstrong's response. Kaylaindy's videos are entertaining. He has had at least a dozen bargain box compressor breakdowns over the past few years. Most Youtube influencers get dealer discounts or free products as incentives to give positive reviews. Choosing a compressor based upon...
  15. Humdinger

    TUXING 4500PSI PCP Air Compressor Review

    Mychildparc.com is a scam website. Everything listed is priced as a steal. The only steal happens when they get your money. Faggedaboudit.
  16. Humdinger

    GX cs4-i questions

    Yes. The residual pressure in the compressor blasts the moisture out of the bleed valve. These small compressors don't remove as much as a compressor that has a built in coalescing tower which cools the compressed air by spinning it rapidly though coils inside the tower. This cyclonic action...
  17. Humdinger

    CF tank fill problem w/ Alkin Compressor and Saber Tactical valve

    @ctshooter, it makes no difference what position the compressor's fill valve handle is in during the startup process as long as the tank's valve is closed until the compressor builds pressure. The compressor has a pressure maintaining valve that doesn't release air through the hose until the...
  18. Humdinger

    Gx cs4-i and omega 75 cuft tank

    This should help. I posted this chart in a thread sometime ago.
  19. Humdinger

    Gx cs4-i and omega 75 cuft tank

    @Baldone, don't be concerned about filling your Omega tank with a GX-CS4. Your Omega 75cf tank actually holds 66cf, not 75cf. It has 6.8 liters of inside volume. The 75cf rating is advertising hyperbole by the seller. The manufacturers of fireman's air tanks like Scott and Luxfer...
  20. Humdinger

    TANK PROS & CONS

    +1 to what WorriedMan says. A scuba tank is made to have negative bouyancy for a diver to sink. Why would you want to carry around a heavy tank which can hold much fewer refills than a light weight SCBA tank? Carbon fiber tanks are the way to go for portability and maximum refill capacity.