You can try ArborSystems Wedgle Direct-Inject Tree Injection System at the TCIA Expo. Watch the demo and then do-it-yourself. See the actual maintenance kit that is included in the carrying case. You don’t need a lot – just O-rings and a replaceable check valve. Maintenance cost are reduced since very few parts are required. And less parts means less time to fix anything and you are back injecting trees very quickly. And make sure you ask to see our latest product from our sister company, the EZ-Ject Soil Injector with its semi-transparent container for viewing product usage, adjustable injection depth from two to eight inches and a replaceable hardened steel tip. For more information if you are not able to attend the expo, click here.