External connectors and mobile sprinklers
The smallest initial investment, but also a permanent dependence on human labor, the relocation of equipment and the proper implementation of each watering cycle.
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Initial technical concept
More local subsystems instead of one large system
Preliminary consideration is given to connecting the subsystem with water sources of individual buildings or garage units. In particular, the conduction of pipes through common garages under buildings E, F and D and under buildings A and B should be examined, along with vertical exits towards green areas.
Such an approach could reduce the need for road and asphalt digging. Each subsystem could have a separate consumption measurement, its own controller, valves and zones and operate independently, without a mandatory internet connection.
For larger lawns, entrenched pop-up sprinklers would be considered, and for narrow belts, shrubs, hedges, and individual trees, drip irrigation.
Preparatory phase
What to check before making a decision
The preparatory phase serves to draw up a reliable technical and financial comparison, and does not constitute an approval of the works.
- 01
Ownership and financial situation
Identify which green areas belong to whom, who can make decisions, which maintenance reserve fund would pay and which water meter would be used for billing.
- 02
Water sources and routes through garages
Check the pressure and flow, the possibility of submersibles and power supply, and safe running of installations through garages and towards green areas.
- 03
Inventory of green areas
Sort lawns, narrow belts, shrubs, hedges, and trees to determine where the sprinklers, drop-by-drop system, or the absence of irrigation are appropriate.
- 04
Comparable offers
At least three contractors should be given the same project task and separately display prices for all three variants considered.
- 05
The cost of a manual alternative
Request an annual offer for watering with mobile sprayers with number of cycles, hours of operation, equipment and handling during drought.
Expected result
Clear basis for joint decision
The final proposal should include a map of green areas and water sources, proposed zones and stages of performance, at least three comparable offers and a price per building or garage as a whole.
It would assess the annual costs of water and maintenance, compare costs over ten and fifteen years, propose the distribution of investment and consumption, and show the results of the pilot project if carried out.
Basic principles
How to conduct further research
- 1
Phased performance instead of mandatory performance for the entire block at once.
- 2
Transparent distribution of investments and costs of water, electricity and maintenance.
- 3
Measurable water consumption per subsystem where this is reasonable and feasible.
- 4
Minimal construction procedures with the advantage of routes through garages and green areas.
- 5
Standard, accessible components that can be easily serviced and replaced.
- 6
The possibility of subsequent expansion of the pilot project and the first stages.
- 7
Separate investment decision after completion of the preparatory phase.
Suggestion of conclusion
Initiate the examination and make the investment decision separately
Representatives or a coordination group would collect data from managers and buildings, organise tours and measurements, request at least three non-binding offers and prepare a pilot and final comparison.
Important: This proposal does not approve works, selection of contractors or the use of maintenance reserve fund funds. Each cost must be separately shown and approved before contracting.