Re: Water Heater = Air Compressor??

Posted by paul on May 14, 2010 at 19:51:22 from (66.44.133.78):

In Reply to: Re: Water Heater = Air Compressor?? posted by Lanse on May 14, 2010 at 18:38:05:

150 lbs of air pressure is a _huge_ bomb. It is very seriously dangerous. It is not something to guess or fool with.

We get used to 60 lbs or so of water pressure, and when it breaks or springs a leak, no big deal.

We know we work around 2000+ lbs of hydraulic pressure, a hose blows & it only makes a mess if we don't get shot by it up close - no big deal.

But liquids do not compress. Once a water heater or hyd line blows apart, the pressure is released & that is that. No big deal.

Air _compresses_ which multiplies it's force. If a seam lets go, or an end blows off, it will come out like a _bomb_. It will put the other half of the tank right through a wall. Right through a _sturdy_ wall.

It is serious stuff.

We get lazy about it, and forget how serious this is.

As I mentioned in my other message below, a 15 year old water heater on a scrap pile is not going to be in anything like new condition. The seams will be rusted, the inside will have scale & rust & thin spots.

The 300# pressure you found is what it was tested for when new, but _not_ what it is designed to hold long term. That is like saying your car was tested at 110 mph, but there is no way it can go down the county road all the time at 110 mph.... I know that is a poor 'comparison', but it does apply. It's tested close to failure pressure, but it is _not_ rated to keep that pressure all the time. What is possible in the short term & what is normal in the long term are 2 different things.

Water & air are also 2 different things, the safety margins bewteen them is different also.

If you are really considering this as a real idea - it is a very, very dangerous one. You could very badly hurt someone else with this. Very badly.

I know you've done some stunts in the past that were on youtube, I only looked at one. It's fine whatever you do to goof off & possibly harm yourself. That is, in the end, your business. I think those stunts are reckless & not wise; but I don't say anything because you are risking only yourself. Whatever you want to do there, not my deal.

Using any old tank for a giant air pressure tank at 150 lbs pressure is going way, way over the line. You are exposing a lot of other people who happen to be within 200 feet of your tank to a very dangerous situation.

This is not a good idea.

I did not mean to put you down. Your idea is just so terribly bad here, that I think several of us figure you had to be pulling our leg. (That is how really bad your idea is....)

When you said you were 'dead serious' about this, it made it seem all the more just a joke. DEAD serious? You have to be joking around with us.

You have been pretty humorous around here, & like to kinda joke around.

This idea is so bad, and your comment on top of it, I really honestly did not take you serously.

Been following your messages in the past, & enjoy your enthusiasim & efforts to have a better life. I'm sorry if what I said put you down in any way. Was not intended.

--->Paul

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