Wency Pan
Actualizado 2022-08-08 05:58:45 UTC

Dear customer,

Netro uses the area and depth flow rate(inch/hour) to calculate the water usage is that when the sprinkler system is professionally designed and installed, the zone is usually covered evenly, which means the large the zone is, the more sprinkler heads it needs. So the equation we use is 

Area(inch^2) x depth flow rate (inch/hour) x time (hour) = water usage(inch^3)

Here are some typical flow rate: 
MISTER: 2 inch/hour
FIX_SPRAY_HEAD: 1.5 inch/hour
BUBBLER/ROTOR_HEAD: 1.0 inch/hour
ROTARY_NOZZLE: 0.7 inch/hour
ROTARY_EMITTER: 0.5 inch/hour

If you switched from spray to drip irrigation, it does decrease the water usage.


Thanks,

Wency

Netro Support


Ver: 1234    Me gusta: 0


prichmond
2022-08-12 16:45:38 UTC  
Thanks, but how is the "saving" calculated please? Ie. the assumptions before Netro & after Netro installed.
Wency Pan
2022-08-15 07:41:04 UTC  
Dear customer,

Here are some details of how saving water is calculated:

To calculate the saved water, we have a reference model for watering usage without Netro. The model basically water same amount every day, based on the weather history in your area in the past 30 years. Netro uses a burst way for watering, not equally watering every day. For example, the reference model could water you yard 10 minutes every day, Netro could water 35 minutes every four day. So you save 10 minutes' water for the first 3 days, and -25 for the forth day. So eventually you will see 30 minutes' saving, which is large, on the third day, but will be adjusted to 5 minutes' saving on the fourth day.

We know the reference model could be problematic, not suitable for every one. There is large space for us to improve, and we are working on it.

Thanks,
Wency

prichmond
2022-08-28 19:20:18 UTC  
Generally over the years a user without Netro would probably use a regular timer with a repeat watering pattern mostly independent of weather, but of course appropriate for the general weather in their area. ( I did). Some manual tweaks for day to day weather like heat or rain, but over 30 years pretty constant pattern. If that's what you use for calculation, I concurr. Thanks!