Heavy 16 salt build up in Canna CoCo Flush

Hey dudes! Currently running heavy 16 full line minus foliar. Hand watering twice a day. I'm thinking I have some salt build up in my coco My run off after every feeding is 200-300 ppm (500 scale) more than inflow. Heavy 16 recommends doing an inoculating flush using their roots,prime, and finish, with og biowar. When I mix the roots,prime and finish at the levels heavy 16 suggests my ppm's comes to 75ppm (500 scale.) My question is should I flush until my runoff is 75ppm or do I only need to flush until my ppm's are at an acceptable range? Week 5 flower I'm feeding 1.6 ec or 800 ppm (500 scale.) So should I flush until 75 ppm to make sure all salt build up is removed or should I flush until i get down to 800ppm? Thanks dudes!!!

You're in an acceptable range. You don't need that other crap or flushing. It would likely create problems.
If anything, lower your input EC a bit.

As long as you're feeding a weak nute solution to substantial run off every time.........you won't get salt build up.

I have been feeding to atleast 25% run off everytime. I'll try dropping the ec to 1.2 or 600ppm 500 scale and continue feeding to substantial run off (at least 25% run off).

Urijah710 said:

I have been feeding to atleast 25% run off everytime. I'll try dropping the ec to 1.2 or 600ppm 500 scale and continue feeding to substantial run off (at least 25% run off).

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That’s all I feed at usually maxing at 1.3EC in coco with my nutrients.