@kylesafety: Today in Spartanburg, SC, a vacuum truck carrying an unknown substance exploded, blowing the rear of the tank completely off. The cause is still under investigation, but incidents like this highlight the dangers of hazardous materials, pressure buildup, and chemical compatibility.
That's crazy the relief valve isn't keeping up! But the driver should have vented it the moment it started.
2026-08-07 02:14:23
0
jacksonwilding :
Probably reversed the Flo. There’s a lever and if turned the wrong way it will pressurize instead of vacuum. I ran a vac truck years ago. Used to reverse for a few seconds or so to dislodge clogs in the line. But don’t leave it too long
2026-08-07 01:54:59
1
foxlunapapa :
why is a vacuum truck pressurized? should be negative pressure.
2026-08-06 14:32:09
40
Kyle-Safety :
UPDATE: Preliminary information suggests the explosion may have been caused by MDI (methylene diphenyl diisocyanate) polymerization, potentially triggered by moisture or an improperly cleaned tank between loads. The rear clamshell door was reportedly found nearly 500 feet behind the truck. The investigation is still ongoing, and I'll share more as official details are released.
2026-08-06 11:13:35
53
cobwebs :
pump malfunction and pressurized the tank.
2026-08-07 02:37:01
0
Keith Wegner :
The fumes from the product you are vacuuming can often times ignite from a hot blower. Anytime I've loaded flammable or explosive material you perform a hot load which means you don't typically run the blower much if at all. You put vacuum on the tank prior to loading and shut in and isolate the tank and just let the vacuum in the tank load without the blower.
2026-08-07 01:18:41
2
solesyndicateglobal :
I use to work for this company out in Las Vegas ! Worst company out there !
2026-08-06 12:11:22
3
Tyler596 :
Definitely looks like chemical reaction inside the tank and definitely takes a lot for the back door to blow off and push the whole truck forward and I remember correctly the door blows off at 26 sum psi dosent sound like a lot but it’s the volume bet the psv wasent working properly or the isolation was closed depending how fast the reaction did happen
2026-08-07 02:00:08
1
Spencer Rupertus :
there is also safety valves on top and thats why is gushing out the top before it blows.
2026-08-07 02:07:25
0
Kyle :
That’s not a vac truck that’s a rocket truck
2026-08-07 02:13:01
0
ItsOkToBeWrong :
Are there no pressure relief valves?
2026-08-06 17:37:52
0
UnratedxMuffin :
That’s a pump truck not a vac
2026-08-06 22:32:51
1
Rosati woodwork🆘🇺🇸 :
This lettuce situation is getting out of control
2026-08-06 13:07:11
15
baseballdad53 :
To much Taco Bell 😂
2026-08-06 17:56:25
5
Big dan :
That is a hydro Vac Truck
2026-08-06 12:28:38
1
Starfall :
I heard it was industrial spray foam
2026-08-06 02:39:44
11
Greg Dupuis :
He must have been just a driver an not a true operator cuz he didnt know what the hell he was doing unless he didnt ask what in the hell he was vacuuming up
2026-08-06 17:04:58
0
bigbacksnackbandit :
70 barrel not a vac truck
2026-08-06 22:46:24
2
Jr :
no pressure safety valve?
2026-08-06 16:38:03
1
Driller :
normally implode
2026-08-06 13:00:42
1
Dr. Megawatt :
Its clearly explosive diarrhea and the truck was full of lettuce.
2026-08-06 22:38:34
2
Beerhunter500 :
Vacuum truck wouldn't it implode
2026-08-06 23:28:33
0
Private B :
no vent?? looks like a double walled tank???
2026-08-06 10:36:07
0
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