Chris and Carpetclean congrats on your new purchases

Things that you will need or is recomended imo
Inline Filter "a must" saves going in your waste tank all the time
Extra hose "a must" on commercial work I use anything up to 600 ft regulary but 200 ft is a good start.
Cilit Bang "a must" keeps your brasses looking like new

Hose Pipe "a must" no point having a a water tank if u cant fill it
Hoselock connectors "a must" get all of them there isnt always an ousided tap
50ft of 1.5 inch porty hose "a must" as you cant dump your water onto the pavement use your old porty hose you aint going to need that much now
Fuel can "a must" dont get caught out buy parking on a hill and running out of fuel
Ramp (double) and signs "a must" health and safety
additonal handy things include :-
RDM / RX 20, TM 4 jet wand with hybrid glide, drimaster, cfr tools with bleed screw, hose hooks (or bungee)
Oh and happier custys

James
It should come with a tap on your solution line