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We will be doing that - thanks for the feedback. Best regards from the Team at Best Tool Upgrades

Because you need replacement air ahead of the media to be picked up in the air flow stream in order to create the stream. Great question. Best regards. The Team at Best Tool Upgrades

Correct. The trigger mechanism adds great inefficiency to the gun (see our other videos). Also, the trigger can tire out your hand - not very ergonomic. We sell a foot pedal to control the flow of air - much better way to do it. Regards

Sure. Our swing arm is designed to fit over a 2" central vertical pipe on your tire changer. The ID of our central vertical post tube is right at 2.08" to allow it to slide down, swing around and not be too lose. Hope this helps. Happy to sell you one if it will fit your unit. Regards. The Team at Best Tool Upgrades

Go to dropdown menu "shop all products" and then select "parts and accessories". You will see it along with many other components that we sell individually as well as in a kit. Thanks for visiting our website. Regards

The metering valve requires air inlet through the small valve on the top with the black valve. The gun requires air from your compressor. Hope this helps

There will be some ersion over time but it is dependent on the type of media being used, the grit size, and the PSI of the system. Never had one wear out completely. Hope this helps

The in and out adjustment of the orifice is to set the tip of the orifice slightly further in or back in the venturi area of the gun. By making this minor adjustment, you maximize the negative pressure that is drawing up (sucking) the media. Hope this helps.

We have had many customers use this with their much more expensive (high end) cabinets and report great results. Will work with all gravity cabinets.

@@partswasherupgradekit6028 Sweet! I'm in, I will place an order by the end of the week. Thank you

I think we have now done business. Thanks for your purchase

Please see our feedback on our website. The modified metering valve is our very best - the consensus opinion is that it works better across a wider array of media types and grit size. Happy to assist you getting your blast cabinet to work better.

There are many UA-cam videos out there showing how to use the swing arm duck head mod. We will make one as well as soon as we can. Best regards

We ship all over the world. Please go to our website at: partswasherupgradekit.com and go through the checkout process Happy to help

Good question. Its the pressure bleed off port to depressurize the valve when you let off of the pedal. You will hear a short hiss. That is how it operates.

@@partswasherupgradekit6028 so you just leave that one alone?

@@Dan-gp2ng Yep - just leave it alone and definitely do not plug it.

@@partswasherupgradekit6028 thank you

Thanks for your comment and your kind words about our blast cabinet kit. Happy blasting !!

Over 5 years and thousands of satisfied customers. Not one report of a failure.

Not a dumb question - that's a good question. To accomplish this you would need the EXACT same fall rate of media as the flow rate entering the vacuum stream. This would be nearly impossible to achieve and in addition would mean there would be a very small volume of media in the hopper. The air inlet valve in the horizontal section of the metering valve introduces air at the right point to establish the vacuum based flow into the media tube to the gun. The media builds at the 90 degree bend and is available as needed based on gun flow demand. Thanks for asking. Best regards

@@partswasherupgradekit6028 Thank you. You explained it well. Does it do any good to add a smaller mesh screen in the hopper to screen out large bits out of the sand as it travels back down to the metering valve?

Sure - go under the "shop all products" tab and then select "parts and accessories". The gun and the pedal are sold separately and you can add any other components you may want as well. Hope this helps. Best regards

Strongly suggest not moving it. It needs to be where the media is laying in the bottom of the metering valve and about to get entrained into the vacuum side of the valve. Hope this helps. Best regards

If they didn't hammer the subject more chumps would buy ChiCom ripoff garbage...

Go to our website to order it is found at: partswasherupgradekit.com It is sold separately or in various kits Hope this helps Regards

Yes - the flat surface is out, the concave end goes into the barrel. If the flat surface is in the media will bounce off the flat. Who won?? Best regards

Need a bit more information - what gun are you using? Media type and grit size? Happy to help

@@partswasherupgradekit6028 bought your gun, extra fine glass beads, superfine more like it.

Please go to partswasherupgradekit.com to see all of our products with prices. Sorry you had troubles with a bad gun. Unfortunately we have heard that story too many times. That's why we put out the UA-cam. Best regards. The Team at Best Tool Upgrades

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We sell three different sizes of gun. The smallest requires 6-9 CFM at 60 PSI. More air up to a point, is always better. If you can get to 12+ cfm you are in a great situation to shoot a wide range of media and grit size. Hope this helps. Thanks for your question

Yes it is. We have quite a few customers who prefer water based solvents and have used our upgrade kit with great success.

Excellent. If you want to order prior to seeing the listing on our website, please reach out to us at our email address: partswasherupgradekit@gmail.com thanks for your interest in our products

Excellent question. Due to huge demand for our kits and limited supply of our guns, we have not been able to list them separately because we want to be able to meet the demands of people wanting the full kits. But here's the good news. We recently had a major resupply from our factory partner and will be listing them separately and in smaller kits in a matter of a few days. So we will be able to provide one for you. Appreciate your question. Happy blasting !!

Bullshit. Nearly everyone in this thread just wants the gun. I'd say there is a bigger demand for the gun and not the kits.

The metering valve does not work under positive pressure, it works under negative pressure (vacuum). Therefore it is sucking up the media, not pushing it up under pressure. Hope this helps to answeer your question

Yes - boron and other metal nozzles do last longer but can cost up to 10x the price. Most guys prefer not to invest that much money in a nozzle. regards

Thanks for your comment. In isolation that could be correct. However; this valve is part of a full vacuum system and there are multiple places where the ID narrows down, to include the actual venturi in the body of the blast gun where the vacuum is created. With multiple restrictions (venturis), pulses can be set up which invariable interfere with each other. Boring out the metering valve actually smoothes the flow upstream of the gun body, thereby increasing the overall efficiency of the system. Thousands sold with very happy customers. Best regards

Actually, as we said specifically in the video, the one with the sleeve was missing the o-ring and the one with the o-ring was missing the sleeve. Neither of the 2 Chinese guns we tested was a complete gun with all parts present.

@@partswasherupgradekit6028 I guess you need to watch your own video a little closer :D ua-cam.com/video/NGEtNs8QWpw/v-deo.html You take the SHINY gun's air jet apart, it has the red sleeve. Then shortly after you remove the nozzle and show that it is the one with an Oring also. The non shiny gun had neither... Then you proceed to state the Shiny one didn't have the sleeve when your disassembly showed that it did.... Since I had just bought the Eastwood gun, your video made me a bit nervous, so I disassembled my new gun, I can confirm the Eastwood chinese gun does infact come with both Oring and sleeve. The thread tolerances aren't perfectly tight, but they definitely aren't awful either. Alignment seems good as well... Maybe they have tuned their manufacturing a little in recent batches. Don't get me wrong, I'm not trying to say your gun isn't better by any means, just that the Eastwood one isn't awful like many of the other chinese models.

@@Applesupnorth Apple - The film was edited in clips and the guns and parts moved around a bit during the process (red sleeve orifice on top at one point, on the bottom at another). You can not tell from that video which part came from which gun because of the editing. It is not a continuous uninterrupted video. Further, why would you say our gun (the non-shiny one) was missing both parts? Why would we show our gun if it was missing parts? - we assemble it from the parts to make sure it is complete :o). Sorry you weren't there to see it in real time. It would be exactly as we said it was. Each of the Chinese (shiny) guns was missing one part. Dropping the mic on this issue here. We are glad that your particular Eastwood gun was not missing parts and was reasonably well aligned and the thread engagement not too bad. But we continue to hear from some of our customers who first bought the Eastwood gun and it was worse than the one you were lucky enough to purchase recently. That is certainly good for you. And thank you for seeing that our gun is superior, we do appreciate that. Happy blasting !!

@@partswasherupgradekit6028 Firstly, I never said your gun was missing the parts... I stated the non shiny chinese model was... which is EXACTLY what your video shows. Secondly, edits/cuts in the video cannot change the fact that you removed the red sleeve and oring from the shiny chinese gun, which is EXACTLY what the video shows...EX> You pick up the Shiny gun, unscrew the air jet revealing a red sleeve...Then later pickup the Shiny gun, and remove the nozzle showing the Oring...Then after a cut in video, you have the red sleeve sitting with the non shiny gun... If each gun was infact missing one part, then you had to have mixed them up during or before making the video. My own mic drop goes here :P Again, I'm not trying to talk crap about your gun or anything like that. It's obvious the manufacturing of your gun is indeed better.... Just saying that your commentary states inconsistent info compared to what the video actually shows. Wish you all the best, USA manufacturing for the win! Honestly, if I wouldn't have had a nice Eastwood coupon to get my gun and foot pedal for $45, I would've bought your gun instead.

The use of an aftermarket metering valve in this location is quite common. We ourselves have sold thousands of them and never had a single comment regarding the inability of the trap door to support the weight. When you think of the hopper being commonly loaded with 20-30 pounds of media (or more in some cases) being held up by the trap door, the additional couple of pounds from the metering valve is really negligible overall. Appreciate your comment and thanks for watching our video. Best regards

Lol and no comment

I bought some Tacoma Company upgrade kit awhile back....all of it was Chinese Junk...the regulator lasted about half an hour. It actually blew apart while I was adjusting the knob

We provide three guns with different CFM requirements to match the vast majority of compressors in use by our primary customers, weekend garage guys and small professional shops. The lowest supports compressor with as low as 6 CFM and the largest will work great with compressors over 12 CFM. Hope this answers your question. Best regards

Our intention was not to say that the media particles travel back against the flow of the air/media slurry. Rather, that the particles do indeed hit the flat end of the brass fitting at which time they will bounce off of it and then be entrained into the flow. This is considerably less efficient than a laminar flow configuration without obstacles in the way. Hope this clarifies our point. Best regards

That is an interesting suggestion but since this adjustment generally needs to be made only at the time of dialing in (and when media type or size is changed), it might be more plumbing than generally required. Appreciate the thought. Best regards

No - we are still selling them but we are a bit low on inventory at the present time and so we are selling them only as part of our larger kits. We are expecting a new shipment in about 2 weeks and will again begin to sell them as a separate item. Thanks for asking. Please check back in a a couple of weeks. Best regards