The uniform structure guarantees a continuous development of roots throughout the slab.
pH & EC - CF can be modified effortlessly
Enables roots to absorb sufficient water and nutrients under all conditions which ensures uniform crop development
Care should be taken when handling rockwool by wearing gloves and mask. The rockwool fibres can cause irritation to the skin, and if breathed in they can also irritate the lungs.
Rockwool is a mineral wool made from molten basalt and limestone rock that is spun into fibres and then compressed into cubes, blocks or slabs.
Grodan ™ is an economical product and is an excellent choice for hydroponic pots, planters outdoor containers or raised garden beds. A loose granulate and works well on its own or mixed with other loose media such as expanded clay pellets and soil. If using Grodan as a soil amendment, it improves aeration, reduces compaction and aids in moisture retention. It’s especially beneficial to growers located in warmer dryer climates.
1. Don’t squeeze the Rockwool especially when it’s wet.
2. Always pre-condition Rockwool in pH 5.5 water before using to disolve lime.
3. Pre-soak from 30 seconds to 30 minutes, depending on size of Rockwool.
4. Water only when there’s light - never water in the dark.
5. Optimum room temperature for growing environment is 18.5- 28 for most species. Temperatures above 26.7o C inside the growing media leads to depleted oxygen levels, encouraging root disease.
6. With low light, water with more volume with fewer cycles - and visa versa.
7. Do NOT keep Rockwool sopping wet. lots of algae is a sign of over watering. Minimize watering while plant is young. Too much water prevents root setting which is essential for growing a healthy plant.
The Grodan Classic Multi Year stone wool slab for vegetable crops is based on NG2.0 technology, and is perfect for use for several growing seasons.
The hydrophilic fiber structure enables the slab to absorb water more easily. The wide control range and evenly distributed water content and EC (in
the slab and between the slabs mutually) results in a healthier root system and extra vigour. The Grodan Classic Multi Year slab is the ideal solution for critical growers who want to maximise their crop performance season after season.
Please contact us directly within 30 days of your purchase if you believe there is an issue with your product purchased. We can be contacted at firstname.lastname@example.org OR phone us on 06 927 4266 OR phone / text 027 295 6833. Unfortunately we cannot guarantee a refund or exchange after 30 days of your purchase date.
To be eligible for a return, your item must be unused, in the same condition that you received it, and in the original packaging.
If the returned product is found to have no fault or has been damaged due to inappropriate use, The Hydro Centre Ltd reserves the right to refuse to provide a refund or exchange.
Gift cards are exempt from being returned.
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 5 working days.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale or clearance items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at email@example.com or call / text us on 027 295 6833 and we will notify you of the process going forward.
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and they will find out about your return.
Goodwill returns policy
We believe in 100% customer satisfaction. If you are not satisfied with your purchase, we offer a 7-day goodwill return policy. Please email us at firstname.lastname@example.org and we will notify you of the process going forward.
To qualify, your item must be unused, in the same condition that you received it, and in the original packaging.
You will be responsible for paying for your own shipping costs for returning your item. Any shipping costs associated with the purchase are non-refundable.
You should consider using a trackable shipping service or purchasing shipping insurance. We do not guarantee that we will receive your returned item. Any unreturned items will not receive a refund or exchange.
Payment & Security
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