Blackwoods a Diatomite source

fossil finder · Post by **fossil finder** » October 15th, 2015, 3:22 pm

I found some Diatomite at Blackwoods in Coffs Harbour the other day. It is hard and clean so I think it good. The shop assistant automatically recommended the sand saying it was much better to which I replied 'it depends what you need it for'. $9 each. If anyone is chasing remember to differentiate between the two as some sales people don't understand the range of uses it has and the different grades. It must be one of the most useful natural products ever!

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Post by **kcpoole** » October 15th, 2015, 4:58 pm

Sweet!

All new batches I soak in a jar of water for at least a week, then try na dcrush between fingers. If still hard then good to use

Ken

phantom · Post by **phantom** » October 15th, 2015, 5:05 pm

Do you know the ph level of this product?

Andrew F · Post by **Andrew F** » October 15th, 2015, 5:14 pm

Please post results, we've got this stuff at work and if its the goods I can just get a pallet from thru my boss.

fossil finder · Post by **fossil finder** » October 15th, 2015, 5:49 pm

No.....but I'm sure its about to change! Woohoo! spring has sprung!

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pommie_mal · Post by **pommie_mal** » October 15th, 2015, 6:58 pm

According to their website, it's limestone chips not DE.

Redsonic · Post by **Redsonic** » October 15th, 2015, 7:10 pm

pommie_mal wrote:According to their website, it's limestone chips not DE.

Yep, limestone and presumably, high pH:

http://www.supasorb.com.au/documents/Su ... heet13.pdf

Damian Bee · Post by **Damian Bee** » October 16th, 2015, 5:22 am

Careful with that stuff.

The MSDS says it is highly soluble.
Don't use it on your good trees until you test run it for a few months

fossil finder · Post by **fossil finder** » October 16th, 2015, 10:17 am

Thanks for the warning everybody. I just got a ph test kit and the supasorb showed up as bright purple 9+. I was going to use small amounts on all my tubestock as well so it could have ended in tears all round. The lady that sold me the kit has used DE for over 20 years and said it has changed colour over the years as the South Australian source is scraping the barrel. I think it stinks that the label mentions for plant use without a warning about the extremely high ph.

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AusBonsai

Blackwoods a Diatomite source

Blackwoods a Diatomite source

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