Rockwool - any advice on what to do with it?

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MikA
KG Regular
Posts: 185
Joined: Wed Apr 13, 2011 11:35 am
Location: Gloucestershire - Cotswold Edge

I have been growing 3 tomatoes in a hydroponic unit using rockwool cubes covered with clay granules. The root system is a solid mass.

Is it safe to remove as many clay granules as possible then shred the whole lot onto the compost heap rockwool and all?

MikA