Sorry Chris A lot of what they say is wrong.
The first they show is a single tank system I do not think single tanks have been used for 30 years .
They talk a lot about adding various things to improve your septic system .
All independent laboratories and university labs all say the Bacteria additives are not needed and can also cause over stimulation of the system causing foaming.
I perused this site and see a lot of advertising on additives .
Yes they do have some great ideas ,but it is necessary to filter the good from the not so good.
Thanks for the post… Cookie