Buyer's Remorse

[engineerdave]

All fittings were coated first with vacuum grease, then with Nylog. Same results. Beginning to think I should just listen for the sound of the pump to change.

[ryan1088]

I wouldn't have to worry about any of that if I did that test in my kitchen.....the wife would probably throw it all way!!

[itsiceman]

Too tight on the knobs otherwise everything looks normal.

[71CHOPS]

can't read the fieldpiece meter on the screen......what are you demonstrating? are you using a cylinder, or just gauges connected to pump?

[engineerdave]

can't read the fieldpiece meter on the screen......what are you demonstrating? are you using a cylinder, or just gauges connected to pump?

Sorry about the poor quality video, fellas. I had just recently made two purchases. I bought the Appion MegaFlo rig, the Fieldpiece AVG2 Micron Head, and a spare set of Appion hoses from a friend of mine who is retiring. The BlueVac micron gage was used as a Control Value. The Appion rig was never in doubt. I had intended to verify how accurate the AVG2 was.

What I saw was very, very disappointing. First, the BlueVac and AVG2 read dramatically different. Which one was more accurate, I can't determine with my set-up. Second, when I valved off one side of the Appion rig or the other, vacuum was lost. Quickly.

My conclusion is either BOTH micron gages have leaks, or the Appion hoses are not really all that special after all. Either way, I've just taken a fair bite out of my over-time money for tools I'm no longer convinced I can trust.

Should've put that money into hardwood flooring for the kids' rooms.

[jpsmith1cm]

Couple things that I've picked up in reading threads here, and it makes sense if you think about it.

#1. New hoses may require a bit of "break in". I can't remember exactly the why to this.

#2. The internal volume of your test rig might be too small for an accurate test. A very small internal volume makes ANY leak a big leak. It's typically suggested to retry the test on a recovery cylinder.

[DeltaT]

All hoses have a "gassing" factor that has to be taken into consideration. Run the system for a longer period of time with less connections and I'd bet you will get entirely different results.

Or, if you are really dissapointed I'd give you 25 beans for that BluVac guage so you could get some of your money back.

Besides, you most likely will never read this post cause if I was your wife (try splaining that to your kids) I'd have already stored your body in the freezer for putting that stuff on the counter.

[mark beiser]

I didn't watch the entire video, but you are not the first person to freak out after trying to test their evacuation equipment with just hoses and a manifold hooked up.

Do the test again, but pulling a vacuum on a recovery cylinder.

[jtrammel]

All hoses have a "gassing" factor that has to be taken into consideration. Run the system for a longer period of time with less connections and I'd bet you will get entirely different results.

Or, if you are really dissapointed I'd give you 25 beans for that BluVac guage so you could get some of your money back.

Besides, you most likely will never read this post cause if I was your wife (try splaining that to your kids) I'd have already stored your body in the freezer for putting that stuff on the counter.

i'll give you 26

[pacnw]

I didn't watch the entire video, but you are not the first person to freak out after trying to test their evacuation equipment with just hoses and a manifold hooked up.

Do the test again, but pulling a vacuum on a recovery cylinder.

I have done the test with a cylinder, new hoses, Nylog, BluVac and Appion CRTs and been nothing but disappointed.
I also tried it on 2 new installs with similarly disappointing results.
I am not sure of the results either.

[itsiceman]

Are you trying to hold the vacuum with the hoses attached?

[engineerdave]

Yes. I was trying to prove vacuum on my pump, hose rig, and micron gages. Was not hooked up to a tank or system.

[mark beiser]

You have a lot of stuff connected there, try eliminating things until you find what is leaking.