ive grown in soil and enjoyed it ,nice soil sum bat poo,organic feed and my diesel was loving it ,,but due to a change in circumstances i had to stop this was after 10 plus years of loving n caring for my babys,,,but im back and this time im trying iws bubbler system so will let u kno what i think when ive tried this way,im after some 1 who has grown in iws bubbler for some advice