We are struggling with drip irrigation design with the Land FX tools. Comparing with our own standards, it makes the most sense for us to use Areas for Drip Emitters. The issue that I have lies with how emitters are assigned, and as a result, how flow is determined.
- Area for drip emitter assigns different emitters, and number of emitters based on container size, which is inflexible for flow calculations
- I understand that Trees can be excluded from calculations for emitter areas. This is handy as it is often required from a maintenance perspective for trees, and shrubs to be on separate lines.
- We work with plants which have drastically different watering needs, but are still sized the same:
- 5 gal. Container Ferocactus wislizxenii (fishhook barrel cactus) needs 0.5 gph
- 5 gal. Container Vauquelinia californica (Arizona rosewood) needs 4.0 gph
- A work around I considered for this was to produce multiple types of areas for emitters
- We already group plantings in to "Hydrozones" so that similar water-use plants are grouped together
- By creating multiple types of areas for emitters, we can differentiate between high-water, and low-water use areas, inside of the existing container size framework
- This is currently not possible, as we are only able to create one type of area for emitters
- Another alternative would be to attach emitter information to plants, rather than to container size
- We already have to produce emitter schedules, specifying intended flow and the number of outlets per plant
- This seems like a simpler and more accurate means of calculating flow for shrub area
- It is also unclear to me if it is possible to specify multi-port emitters, which are shared by separate shrubs. (i.e. a shrub requires 2 outlets, and the emitter has 6 outlets; in the field a contractor would install a single emitter for shrubs spaced close enough together)