Hello All -

I was going back over the preparation information for the gritty and 5-1-1 mixes found in the

Container Soils - Water Movement & Retention X

threads.

I am looking with regard to the screening requirements for the gritty mix: recipe below for main components:

1 part uncomposted screened pine or fir bark (1/8-1/4")

1 part screened Turface

1 part crushed Gran-I-Grit (grower size) or #2 cherrystone

1 Tbsp gypsum per gallon of soil

CRF (if desired)

I came across the following statement from Al when he was showing pictures of his sieves:

The finest size is aluminum insect screen. Then, I have hardware cloth (galvanized steel) in 1/8, 1/4, 3/8, 1/2" sizes.

If you're making the gritty mix with pine bark, you can get by with alum insect screen, 1/8, and 1/2.

Al

My question is with the line in italics.

I thought the only screen sizes needed for the gritty mix are the 1/4 inch, 1/8 inch, and 1/16 inch (insect screen).

It seems Al also has the sizes: 3/8 inch and 1/2 inch - are thee sizes for use with the 5-1-1?

I would like to have a local handyman make the sieves like Al uses below: So, I need to tell him exactly what size mesh sizes I need,

Thanks!

Brian

tapla (mid-MI z5b-6a)

What I use:
{{gwi:3443}}

I have 2 sets (2 different sizes) of 4 different mesh gradients.

Al