I have 3 valve manifolds around my property primarily for lawn and border planting irrigation but also for drip circuits on trees, garden, potted trees, container planting, etc.
I would like add 3 separate zoned drip systems with 1 off each manifold. Each would use a traditional irrigation anti-siphon valve as a master valve and connect through a filter and pressure regulator to 1/2" flexible drip supply tubing. Each of these zones can add clusters of smaller cheaper 24VAC 1/2" barb valves to customize watering for various types of plants. This would make it easy for seasonal planting, etc to move tubing and valve clusters or turn off leaky or unused drip lines or groups.
I have an HD-16 and a Pro-16. This is more zones than I really intend to setup, but isn't flexible enough with master zones. Each controller can only assign 1 master zone and if selected it switches on with every other valve. I wouldn't want drip zones pressurized every time a lawn circuit comes on.
As a compromise, I'll use 1 controller to run only independent zones and 1 controller for a single drip master and longer tubes to distribute clusters of subvalves.
Alternative, I could use 4 separate controllers (1 for independent valves and another for each of 3 master connected drip clusters). This wouldn't be so bad if there was aggregated control, but it really seems excessive and a nuisance.
Is there any hope this can be fixed in software or firmware or is it fundamental to the hardware? There is enough power to run 2 valves simultaneously. Can 2 valves be turned on in more flexible ways such as selecting indepedent valves or associated with multiple masters?
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