portable RV waste tanks

I just bought a store and tote 32 gallon thetford. I used it 6 or 7 times on our last trip. It has 2 wheels on one end. I am stouter then the average guy (to many years in the gym) and I can tell you that is all I wanted to do was to lift almost 300 lbs of water and drag it to my truck. The unit itself worked great but it was heavy. I actually tied a rope with a plastic tubing for a handle just short of my waist to make it to where I didn't have to lift it that far off the ground. Here is the one I bought.

http://www.amazon.com/gp/product/B0085KGOH0/ref=pd_lpo_sbs_dp_ss_1?pf_rd_p=1944687542&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B0085KGOIE&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=11MXPJSN6379GFS091SW