Can a propane tank be repurposed?

[MAX-24-Dean]

I was specifically referring to the one pound bottles. They have a relief that sprays out when full. That's how you know it's full yes, the fish cooker bottles have a screw that you loosen and fill until gas comes out, then tighten. I've used butane tractors and trucks we filled from a 500 gal tank. We had a Minneapolis Moline and a John Deere 4020 that ran on vapor and a GMC truck. I know the truck was a 73 3/4 ton with 500 grand on it and still ran nice.

I didn't read your post corectly, missed the little bottles comment (one Pounders).

 

[Skeletor]

I converted a 20 pound propane tank to an air tank, 20+ years later it still smells like propane. I don't think the mercaptan smell ever goes away.

I used a grill tank on my compressor setup for a while myself. I got sick of the smell. It never even lessens any overtime.

 

[MAX-24-Dean]

View attachment 753025View attachment 753026

Will be making some yard art similiar to the flying pig.

 

[ROUSTABOUT]

I didn't read your post corectly, missed the little bottles comment (one Pounders).

It's okay. We have to police each other to keep from misleading others.

I didn't read your post corectly, missed the little bottles comment (one Pounders).

I have no idea how it doubled.

 

[WM75Guy]

"I like the idea of a smaller, pressurized, hand held 2-3 gallon sprayer."

Find a used 2 1/2 gallon pressurized water fire extinguisher. You can fill it yourself and air it up with your compressor to 100 PSI. The hose unscrews so you can adapt a sprayer wand of your choice. We refilled our water extinguishers at the fire department after we used them, easy to do.

Per the NFPA standard once the label is defaced they cannot be filled and tagged for use as a fire extinguisher. They get sold as cheap as $10.

2.5 Gallon Water Fire Extinguisher - Model 240

2.5 Gallon model 240 class A fire extinguisher

amerexfireextinguishers.com

 

[jyoutz]

"I like the idea of a smaller, pressurized, hand held 2-3 gallon sprayer."

Find a used 2 1/2 gallon pressurized water fire extinguisher. You can fill it yourself and air it up with your compressor to 100 PSI. The hose unscrews so you can adapt a sprayer wand of your choice. We refilled our water extinguishers at the fire department after we used them, easy to do.

Per the NFPA standard once the label is defaced they cannot be filled and tagged for use as a fire extinguisher. They get sold as cheap as $10.

2.5 Gallon Water Fire Extinguisher - Model 240

2.5 Gallon model 240 class A fire extinguisher

amerexfireextinguishers.com

View attachment 753041

Would be kinda hard to apply a targeted herbicide spray with a steam from a fire extinguisher.

 

[WM75Guy]

"I like the idea of a smaller, pressurized, hand held 2-3 gallon sprayer."

Find a used 2 1/2 gallon pressurized water fire extinguisher. You can fill it yourself and air it up with your compressor to 100 PSI. The hose unscrews so you can adapt a sprayer wand of your choice. We refilled our water extinguishers at the fire department after we used them, easy to do.

Per the NFPA standard once the label is defaced they cannot be filled and tagged for use as a fire extinguisher. They get sold as cheap as $10.

2.5 Gallon Water Fire Extinguisher - Model 240

2.5 Gallon model 240 class A fire extinguisher

amerexfireextinguishers.com

View attachment 753041

That is why I said to add a sprayer wand.

 

[Jstpssng]

Gee, I've always pulled out the Schrader valve and crushed them in my press.

Never thought of making a piggy bank out of them.

Me neither. That was pretty clever. I especially liked the flying pig though.

 

[Smokeydog]

20# propane cylinder makes a pretty good propane forge. Top is hinged and can be blocked up if needed.

Lots of damage and injuries from pneumatic PVC and non rated steel tanks documented in industrial and farm safety stories. Hope I didn’t reach retirement age to lose it all by doing something stupid. There is lots of fabricating, repair, repurposing projects that work and save money.

 

[Vigo327]

If you are trying to make a small, lightweight, tank to carry you can use PVC pipe. Keep the pressure below 150 psi and you will not have any issues with failure. The one caveat to PVC is it gets brittle with age and can fail. I'd replace the tank every few years to prevent that.

The main thing with a portable PVC 'thing' is you have to keep the sun off it, but a paint job does that. I still wouldn't make a tank that I carry on my body with it, but I wouldn't be bothered by making the air lines in a home shop with it as mentioned.

I agree with everyone saying it's impractical to go to so much effort to devise a potentially unsafe version of what is already a cheap readily available product, BUT...

I still think threads like this are very useful for DIY'ers because you pick up tons of little bits of information that get stored away for use in OTHER diy project ideas. So we're not 'just' rattling off reasons not to do something, we're sharing information which may make THIS idea a bad one, but might lead to another good idea, or 5, or 10.