purefreedom trolley 25ltr works great for me depends on your round cant get 4x4 right outside every house i do , 25 lts is a lot lighter than 50ltrs , when pulling thourgh snow sorry dazmond i have 10mtrs of pole hose and a 10mtr retractable air hose reel attached to trolley i dont find it a problem switching containers you just need to try and park in the best spot possible and work back towards car or van rather than away from it so when you need to switch you are closer to van its all learning curve AND ITS THE BEST BUILT TROLLEY ON THE MARKET IMO had mine nearly 3 yrs now still going strong should last until i retire at 60 now 35yrs old