sprayer exploded

Good point, it can happen. Keep that plastic sprayer out of the sun too. UV light can make plastic brittle over a few years.

Was it a cheap unit, that scares me since I use acid in them. I have many cheap units, maybe I shouldnt have got the cheap ones but muriatic acid ruins the pump fast anyway.

Yes, it was a cheap unit. But even so, I did not anticipate the unit failing like that. One thing tho -- my sprayer *was* exposed to sunlight. As another poster mentioned, that could have weakened the pressure vessel.

I can't imagine what would have happened if I had a failure while spraying some really nasty stuff. That's the stuff of nightmares.....

As perhaps, can chlorine bleach.

Did you bother to RTFM? If so, you were told to ONLY use such and such etc.. Right tool, right job.

I don't know of any residential type sprayer made to spray muriatic acid. Since you don't mention psi, recommended psi and recognition that it is made to handle what you spray, it's a good thing you aren't blinded by the experience because they'd have zero liability.

The post is ancient, but there is nothing out there more current. I bought a brand new sprayer at the cheap tools outlet place. I filled it with properly mixed insecticide and proceeded to pump it up. No superman stuff, just a normal 70 year old homeowner. I noticed some dripping from the bottom when suddenly it became a rocket. The bottom seam failed and blew apart. Remember the little rockets we had decades ago. You put some water in them, pumped them up and flew about 100 ft. It was like that with over one ton of force. It broke my hand, ripped open my arm, took one of my front teeth and put it through my upper lip and stuck it in the inside of my right nostril. I look like a hillbilly with missing front teeth and my right arm has something they call RSD. It looks like a bear arm because of the long black that the replaced my normal hair. When I asked the company about the problem, they say it could not happen. This thing was brand new. I took it out of the box. You were lucky indeed..

No picture, no proof.

Was anything done bout it, I just had one blow up with farm chemicals in it.

I am not always real sharp, but I do know nothing ever happens unless it is documented. I have lots and lots of pictures

It seems it is a winnable case, but the medical bills were about $14,000. it seems there is just not enough money in it for an attorney to fool with it.