I feel like a frickin’ genius! Problem solved!
The problem was the vacuum regulator valve that came with it, for me to hit 3 in hg or less, it actually was completely unscrewed and fell out when the pump turns off.
I went and got a air flow valve from the pet store, that is made for the air pumps, but what it does is regulate flow rate, not vacuum. So for me to drop the vacuum at all, the flow rate goes down to almost nothing, and it doesn’t pull me quickly into the tube like before.
So, after some brain storming, I realized I need a way to control the bleed in of outside air to control the vacuum without decreasing flow rate.
EUREKA!!! While driving home this morning, and running it through my brain, I figured out how to do it on the cheap. I came home and set it up, and it works PERFECTLY!
Just send me $10.00 usd and I will pm the answer, no better yet send me $10 and Thunder $5 and I will pm the answer!!! :)
Just kidding.
The pump I bought has everything you need to set it up perfect. Take the splitter ( the three section tee ) and connect it to the vacuum source. This will leave two prongs free.
Take the air regulator valve that comes with it ( if you don’t have one, get a cheap one at the pet store for regulating air pressure from the pump, about $3.00) and use a short section of tubing ( about an inch or two) to connect it to one of the free sections of the tee.
You now have two of the three sections of the T connector occupied. One goes into the pump, one goes into the air valve. Just connect the available one up to your hose to your cylinder.
You now have full flow vacuum pull from your pump, and a “bleed off” valve, that you can open and close to adjust the vacuum that goes to your cylinder. It adjusts the vacuum, not by restricting it, but by letting in a controlled rate of air that drops the vacuum the more air you let “bleed” in.
Works great, and is very accurately adjustable! Enjoy!!!
ps you can still contribute to Thunder if you are overwhelmed with gratitude at the wonderful electric pump you have and all the money you saved! ;)