Powerbox smoke pump
I normally use Kingtech smoke pumps but they have been out of stock for a while now. I tried the holy smokes pump but hated having to clamp off the line when filling to keep the fluid from pushing out of the end of the smoke tube. So I am considering a Swiwin or a Powerbox smoke pump. For anyone who has used the Powerbox. When filling the smoke tank, does the powerbox pump require a shut-off valve to keep the smoke fluid from coming out of the smoke tube or does it have a shut-off solenoid like the Kingtech pump?
Thanks,
Tone