Naegele Posted August 12, 2020 Share Posted August 12, 2020 I purchased three of the Anderson Jack Blocks thinking the reduced time (jack travels much less), reduces stress on the jack ( not extended so far, better for resisting side loads) and clean off with a rinse when used on dirt. So they work as advertised but I have discovered a basic weakness of the product when used on anything other than concrete. See the pictures. When used as sold the bucket goes flange side/hollow side down. The issue is all the weight is on the flange portion that calculates roughly 28 square inches. So given say a say “650” lb tongue weight that equates to 23 PSI. The result is the flange settles into both dirt and asphalt. By comparison a 2x12 board cut square 11.25x11.25 is 127.6 square inches and 5.14 PSI with the same load. I may try them upside down but they will collect some rain water. Bottom line I need to put a flat surface of lumber or other plastic block to prevent the bucket from sinking in. At the last campsite we were at the settled in about 1/2 in per day. I store the Ollie at a new RV storage yard and the owner wasn’t too pleased with the rings I left in his asphalt. 1 2 Link to comment Share on other sites More sharing options...
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