If you have to blast far away from your compressor, you may want to remove the blast pot from the trailer.
Why does this matter?
Water and media are heavy, and you can lose some pressure when you push them through hundreds of feet of blast hose. On the other hand, air is light, and doesn't put up as much resistance. This is why we extend the air hose instead of the blast hose.
Think of the additional air hose as an extension of the air tank.
This technique is good for when you're blasting high up in the air, like the top of a building or parking structure. It's also great if you're blasting a pool in a backyard, but have to leave your trailer/compressor parked on the street.
Removing the Blast Pot from the Trailer
You will want to unload the blast pot while it is empty of media or water. Use caution when removing from the trailer, as the blast pot is very heavy.
To remove blast pot from trailer:
- Make sure all water pressure and air pressure has been released from the blast pot.
- Remove any remnant media or water from the blast pot.
- Disconnect the air hose, electrical power line, and water inlet hose from blast pot.
- Remove bolts and washers that connect the blast pot to the trailer. The bolts have a thread-locker applied, and may require heating up before loosening. Be sure to put these in a safe place so you can find them when it is time to put the blast pot back on the trailer.
- Carefully and with team effort – remove the empty blast pot from the trailer.
- You will need to extend your current air hose and electrical power line* with extensions as needed and reconnect them to your blast pot.
- We recommend using a water hose to fill your blast pot instead of extending the water inlet hose.
To load blast pot back onto trailer after work is complete:
- Make sure all water pressure and air pressure has been released from the blast pot
- Completely empty out the blast pot of remnant water and media
- Disconnect the air hose and electrical power line from blast pot.
- Carefully and with team effort – place the empty blast pot back onto the trailer. This may be difficult as the blast pot is very heavy.
- Once on the trailer and in the correct position. Add a thread-locker to the mounting bolt threads, and install the mounting bolts and washers that connect the blast pot to the trailer. Torque these mounting bolts to approximately 75 lb-ft.
- Reconnect the air hose, electrical power line, and water inlet hose to the blast pot
- Any threaded fittings removed will require a thread sealing compound or tape upon re-installation.
- Remember to save and re-install any safety-clips that may have been removed during blast pot removal.
*Note: Some of our older mobile machines use pneumatic twin line instead of electric line. Purchase whichever one is compatible with your machine.