Ray's latest activity

For the 25 years I was building and selling RO systems, I used standard residential membranes, not the more expensive industrial ones...

I'm gonna give this stuff a ride and see if I can see any differences. ANyone else out there wanting to jump in, drop me an email.

Welcome!

HAH! No need for an apology. I was questioning my own calculations, while drinking my first cup of coffee this morning.

I think folks get unnecessarily hung up on "TDS". Plus, most so-called "TDS meters" give crap results anyway. I don't know what a 100...

The stuff is 46%N, which is 460,000 ppm or mg/kg. If you're shooting for 100 ppm N, then that would be 1000g/4600= 0.217g x 3.785 =...

I am not going to be able to do a side-by-side experiment, having duplicates of only two plants. After 50+ years of growing, I am...

Ammonium nitrate. The rhizosphere pH efffect is the same, though.

All of the discussions about fertilizer recently, especially Xavier's comments about growqers supplementing the MSURO with MSUWW...

Nice!

Welcome from a former Doylestonian who worked in Exton. Now on a barrier island in NC.

If there is an issue with the solutions applied, it's likely not related to the pH per se, but to the acidity or basicity, which can...

Welcome, Jano.

Bright, diffuse light is important. I made myself a “studio box” a while back, attaching white bedsheet to canvas stretcher frames, one...