I am nearing completion of an on-and-off project for the last few months. Using cheap Internet of Things (IoT) components, such as flow meters and Arduino boards to compile a universal meter automation solution. The theory is that you can take this and install it in line with your existing (sub)meter and be able to track your water usage in real time over WiFi or Cellular connections, depending on whatever spectrum(s) you have available at your park.
My goal is to rely upon the data for billing purposes, and true up with the meter readings once or twice per year manually. This solution is setup now to upload data to my Google Drive spreadsheet every 15 minutes so I can access it anywhere in the world on-demand. Each meter (MHP pad) gets its own column, and can add sheets to the workbook for additional locations.
Approximate cost of hardware is about $65.00 per meter, closer to $50 when you do 20+. You might be able to also interface with existing pulse meters and save $10, and will be testing that after this one is completed.
Other functionality: 1) submeter notification (email to our Park's general mailbox) when continuous usage for 4 hours (water leak) so the manager can chase it down; 2) submeter notification when there have been no readings for a week (either technology issue or resident has moved out); 3) notification on a specific date when the monthly meter readings have been compiled and a new spreadsheet for the new month created.
Reliability (and overhead due to unreliability) of a solution like this is the major concern and I have a weatherproof enclosure bought from Home Depot or Amazon to hopefully address it (more in the next 30-60 days). Also ease of setup for non-technical people will be a challenge in some cases.
Beyond that - is there interest from the broader community in something like this? Are there other key items that I am missing? Does this seem attractive compared to some of you with the proprietary systems today?