SMS and Turface are not that same back color though.
EC is pretty black.
SMS and Turface are funky grey.
I used 80 Bags of EC on the 1600 gal with a 12 x 4 foot print.
I do take CA clients.
I can do on site consulting or work, your choice.
I also get livestock and product at wholesale cost, so the rate I charge is that + 10%.
I make the $ on the labor/consulting, I'm not in the resale business and this is for clients only(otherwise I'll get 100 emails begging for savings on items, the answer is no, so do not ask, this is one method how I save much more than I charge, but I am not cheap).
I generally work in the north LA area or SF/Sac area.
Regards,
Tom Barr