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[thunder30101]

Does anyone know where I could buy some water retaining gel crystals in bulk and how much is a good price for it ?

[scotbeve]

You want to find a supplier of silica gel capsules. I had a supplier in Chiang Mai 17 yrs. ago when we planted our teak plantations. I'm sorry, but I can't remember their name. I would think that you should be able to get some easier nowadays. Check with the district agri folks (gaset).

[WatersEdge]

Diapers are made from Super Absorbent Polymer
Would this serve the purpose?
Seeing that every last piece of trash is hand sorted,
it isn't ridiculous as it might first sound,
that you could collect a commercial quantity.
The trash dealers handle everything several times.

Gypsum is water absorbent cheap bulk material, while doing nothing harmful in the soil