Gritty mix made! , & thanks Mike & others
Thanks to Mike (meyermike) of this forum for facilitating my first batch of gritty mix. He took me to a cactus and succulent club meeting at at Tower Hill Botanical Gardens, a lovely place with two big conservatories. He spotted every mealy bug and aphid there. Nevertheless, the air was moist, the several varities of orange trees were were loaded with fruit and someone really had an eye for indoor plant arrangements. It was a great afternoon even if I don't love love love cacti.
Mike had bought crushed granite with him. it got loaded into the back of my van. The turface was not far behind. Then that sweet guy gave me a big bag of fine orchid bark.
I mixed it last night (after rinsing, straining, measuring not in that order) and even repotted several plants. It was 1:30 am when I finished and there's still medium scraping along underfoot.
So a big thank you to everyone who helped me accomplish this goal. I still have to get the appropriate fertilizer and begin that program. But I got the hardest part done.