Add more Reservoirs to your system. For maximum time savings you'll need one for each Root Seeker. Here they are!
Follow-up: It's fine to leave the system installed year-round, but if you want to remove the Reservoir when empty, pull it off and replace the Cap on the Root Seeker until next time. Reservoirs stack nicely in the corner of your garage.
Not drip irrigation: Please don't expect the Reservoir to remain full for extended periods of time. Slow drip irrigation promotes concentrated root development at the drip point, keeping the tree weak and dependent. If you want slow drip irrigation do not purchase Tree I.V.
Very durable: Unlike bag products, Tree I.V. cannot be destroyed with a string trimmer or a lawn mower. Find a new home for them when you're done.
Fine Print: Clay or compact soil has a much slower percolation rate, and may require an initial plunging with a 5/8" dowel rod to get water flowing. This is not a problem with new trees, but can be with larger, established trees. 2) Be sure the Root Seeker is installed with the shoulder tightly against the surface to avoid water resurfacing.