I assume your in soil?
You might want to just run a bunch of water through your pots to flush out extra salts, ppm check your runoff to make sure its effective and just water as usual no nutes till chop.
Big call with no other info, not even a photo. How do you know he has excess salts and what is excess salts?? You mean a salt build up leading to lockouts? Has he a salt build up problem? What type?I assume your in soil?
You might want to just run a bunch of water through your pots to flush out extra salts, ppm check your runoff to make sure its effective and just water as usual no nutes till chop.
This for soil and thats IF youre using nutrients.If you feed properly during the plants growth cycle all you need to do is taper off the nutrients towards the end.