Isivande Bio Grog
10 April 2010 - 15:00
We have been using these 15 kg bags of porous stones with great effect. In a pond 100 000 liters the water would never come clear clear until we built a 1m3 chamber with these porous stones in 15 kg bags. It works great as a natural product not plastic or PVC. At R 50.00 excl. VAT for 15 kg. bags it is a lot cheaper than alfagrog and does the same job. You can pack the bags into your chamber for easy removal during cleaning period.
