Yes, it would surely lower the concentration, but you'd still have a pretty hot mix until you get up to 2-1/2 to 3 cu yds of soil, given how much blood you added. What are you afraid of losing? The bone meal & gypsum aren't soluble except in acidic soils and you probably could have left the worm castings out & relied on the fish/seaweed emulsions to provide the minor elements. There's a good possibility too, that if you added so much blood meal, there's also probably more bone meal than needed? I'd leach thoroughly, but it's your call.

Al

Al,
Well I already stuff growing in it for now. I am thinking of building a sifter with hardware cloth anyway. If I drop a piece of insect screen on top of that and then flush it do you thing that will get out? It would also wash away screen sized media. You know the little stuff that clogs up the mix.
I would be doing this as each container comes of line

Thanks again

1eyeJack and the Dawg

I think there is a typo - did you mean "off line" or "on line" - or am I just not understanding the question?

Al

Yes, Typo Off line

I meant when what is growing in them is done.

Thank
Jack

I guess you'll be finding out soon enough, hmm? - it's the interim period you need to be concerned about, Jack. By the time you get to the end of the growth cycle, it'll probably be a nonissue.

Good luck.

Al

OK Al,
I pulled everything that was growing in the containers UP AND OUT. I then placed them on bricks and let water run thru them til it was running clear. I hope that I have time to get stuff germinated and growing before it get to cold for it to grow. Have I done enough?

1eyedJack and the Dawg (with waterlogged toes)

I bet you have, Jack. Good luck - hope you have a bumper crop!

Al