constant drip with salt water??

[HaZRaTTy]

I don't see anyway to accurately doing this that is easy.

If you had a SW drip you would be swinging your Salinity. and If you added a FW drip the same.

I suppose you could set this all up on a dosing system and code your own program to try to keep the balance of your salinity by your ATO playing catching up and monitoring how much your draining or vice versa with adding freshwater and dosing salt.

Either way it makes my head hurt how much would be involved in doing this do you see people doing this with their reef systems? How do they achieve it.

Even if you could the window for something to go wrong or fail would be catastrophic in more then one way if not caught right when it failed.