My Jobo tank tried to kill me

[Tori Nelson]

... As usual I saw no need for directions or any sort of google search.

Haha, it seems only men have replied to this post and not one of them has mentioned the above. LOL, 'nuff said!

[SpeedGraphicMan]

Sounds like those accursed photo-gremlins are at work yet again!

You just reminded me why I like tray development

[Jim Andrada]

By the way, pressure vessels like boilers etc are tested with liquid, not air for all the reasons given above.

[Greg Blank]

Typically pressure vessels are X-rayed before adding liquid. I worked on a survey crew that oversaw 36" natural gas pipeline being installed throughout a densly populated metro area. Every weld was inspected using a robotic x ray car that took film exposures of the seam before it was lowered into the ditch, wrapped and covered with about 5 feet of dirt. Just prior to turning on and venting gas, they filled the whole shebang using fire hydrants. Not sure if they did the whole 10 mile stretch with water, we were at the end by then.

[rwhb1]

Guys, water is not compressible. You are supposed to fill the tank before pumping it up then there is no explosive force.

Russ

[Jon Wilson]

Use your foot to pump and ALWAYS keep your hands over the lid. Another tip... don't put the lid on too tight... makes it much easier to get it off later. And pump the foot pump gently, gradually building up pressure. Keeping water in it helps too.

This is the process I have followed over the years, but typically place the pump on the counter next to the drum. The key truly is keeping one's hand gently on the lid's top.

Keep joboing

[atlcruiser]

Ok...enough!

I got it now!

Who dug this post out form the depths!?

[Roger Cole]

Ok...enough!

I got it now!

Who dug this post out form the depths!?

Sorry, that was me, because I had mentioned someone trying to make a "modern Jobo" or such and someone said that was Bob Carnie just trying to make one deluxe model for his own use as his die, and I had agreed, then saw the real thread I was talking about so I dug this up to correct it...

I still think if something that does what a CPE2 does could be made and sold new for under $500 there would be a market. Maybe not enough to support a company the size Jobo was, but as a cottage industry for one guy or a couple of guys turning them out - yeah. In fact I'd pay a bit more than that for a brand new device that worked right. I don't know about patent problems if they worked with Jobo tanks though, regardless of how much the rest might differ.

[ic-racer]

Guys, water is not compressible. You are supposed to fill the tank before pumping it up then there is no explosive force.

Russ

If you actually fill it to the top, be warned. There is still an explosion of sorts; there is about a liter of water in the lid. When the lid comes off, realize that there is no bottom to contain this liter of water. Note to self: do this in the sink!

[Greg Blank]

Roger;

That is completely laugh worthy in my minds eye. 500 dollars is not an incentive for a production peice in the modern world in a niche market. Waiting for the few customers that actually process film to pony up that low dollar amount is paramount to going out of business and dying broke. Consider the average quality power tool purchased new, now consider a quality item made from a company that actually cares about the end result. Think Porter Cable versus, Skil saws or Black and Decker.