Yes, the top lifts off for access to the recovery tank and 30 GPM APO.
No solution tank to mess with. It's auto fill, and will work from a direct faucet hookup, a water tank (self-priming), or a bucket of water. It also has a Dwyer chemical meter for chemical injection.
That dolly contains all the hoses needed for cleaning - fresh water, APO hose, vacuum hose and solution hose, plus electric heater, the vacuum filter, and the wand.
You can also put a stretch mesh cover over it, if it looks too unsightly for you.
The idea is to go inside all in one trip.
This is part of the electric truckmount, so you don't have to have a separate truckmount and portable - one machine does both from the van and inside cleaning.
There is also a 1200 PSI pump option, but I find the 600 PSI is more than enough.