Dilutor

Can I just say thanks for the Static Dilutor I purchased from you in the middle of 2018? As a result of poor soil quality, I have been feeding my Silver Birch Tree to prevent summer leaf drop. For several years I did it using a watering can and a sprinkler to water it in properly. I came across your unit accidentally [it] works perfectly – probably one of the best investments I have made. Thanks again.