In my van for stock I carry the following.
Stock
Box of fibre washers
15,22mm solder,compression & pushfit couplings
Flexi Hoses
Toilet syphons Lever & push button
Fluid master bottom/side entry
Donut washers & Brackets
Tap Revivers Basin & Bath
Assortment of 32/40mm Solvent weld fittings Buy Pipe to order, gets dirty otherwise. & A few Compression
WC Fittings and Flush Handles
Drain Clearing Chemicals
Bag Cement
Files
Sealants
Ball Float Valves Part 2
Trv & Rad Valve
Wastes Assemblys & a Few Traps
Fixings and Plugs
LSX,PTFE,HEMP,Gas Seal
Jet Machine, Rods,Snake
Plunger, Flush Gun
Assortment Cable Fuses
Screwdrivers
Flux
Steel wool & Abrasive Strips
Greases
Masking Tape
Insulation Tapes
Immersions 11 & 22
Tools
Circular Saw
Jigsaw
2 Cordless Drills 4 Batts
1 SDS Drill
1 Electric Plane
1 Grinder
2 Sanders 1 big 1 Little
1 Belt Sander
1 Foot pump (Pressure Testing)
1 Pressure Gauge
Jaw droppers Basin & Bath (Very Good)
Crowsfoot
Water Pump Pliers
Drill Bits
Core Drills Bits
Stilsons
Assortment Spanners
Ratchet
Hand Saws
Pipe Slicers Copper & Plastic
Vice
Torches & Head Light, inc Batteries and inspection Lamp
Steps, Beer Crate
Spirit Levels
Pencils and Sharpener
Knifes
Board Lifter, Crow Bar
Good Chisels & Old Ones, Bolsters
Allen Keys
Blow Torch and Spare Gas Mapp & Propane
Dust Sheet (Plenty)
Clear flexible tube, good for draining water out prior to soldering
Loads of Containers to collect drips & spills
Wipes & disinfectant
First Aid Kit
Goggles High Vis Vest
Coat And Wellies Gloves inc Disposable
Pipe Benders 15,22, and Microbore
Plastic Pipe Ratchet
Trowels and Floats
Dust Masks
Hoses, Funnels
Cement Bucket
Water Regs and Brochures
Reciept Pads and Stationary
I am sure I forgotten something
2 Fire extinguishers 1 in van one in tool box