Rust like sediment in bottom of res.

[Dirty Budz]

like the title says, home-built aeroponic system, res is 100% free of light, nutes are dyna-gro, with dm zone, nothing organic.

is this normal?. first time back in the saddle in 4yrs.

 

[budshoteyes]

My first thought was iron in the water,tap water?
My second is bad nutes,coagulation?
My third is weak water run off allowing nutes to settle?

 

[JamesFarmer]

Do you have "rust" stains in your sinks or toilets? That would be a good indicator of high iron content .
If you are using H2O2 in your solution that will cause iron to precipitate out of solution.

 

[budshoteyes]

Jamesfarmer....those are excellent clues!
I didn't realize h2o2 would do that but makes sense!!!
H2o2 is hydrogen peroxide?

 

[Devilman]

I had a similar thing once but was using hydroton, so I figured it was just some residual crap coming out of the hydroton, but perhaps not. Although it may be worth mentioning that I was not usig H2O2 and had the same "rust-like stuff" at the bottom of the tank.

 

[Dirty Budz]

Figured it out, it was dead bacteria zone was killing.

 

[JamesFarmer]

Jamesfarmer....those are excellent clues!
I didn't realize h2o2 would do that but makes sense!!!
H2o2 is hydrogen peroxide?

Yes. It is.