Originally Posted by AWJ Services
Yes it is tough. We have had so many chamber ( infiltrator) systems collapse that I just do not use them anymore. The product is rated too take the load of a tandem dump driving straight across them. The seperation close works real good. We used too have too cover them with paper. I back fill them and take my mini ex or track loader and run up and down the trench too compact the trench. If possible you can leave a small mound ove rthe trench so that at settling will not leave a depression.
I collapsed one of those lines with a single axle dump, don't see how it could stand up to a tandem.