Can I use the GEO method of keeping my holding tanks clean?

Can I use the GEO method of keeping my holding tanks clean?

Can I use the GEO method of keeping my holding tanks clean? The GEO method is a mid-1970s sort of “home-brew” method of keeping your RV’s waste holding tanks clean. The basic idea was to create a mixture of Borax (a water softener), Calgon (or...