How much will I save on my monthly bill if I install an irrigation meter?

Your savings and payback period depends on where you live and your water use.

Calculate potential savings:

Inside city of Charleston

  • First, calculate the average amount you pay in SEWER charges each month. For this example, let’s say it is $67.75 (Based on 2018 average customer usage of 7 Ccf).
  • Subtract this amount from the maximum sewer charge, which is $144.21 (2018 inside City rate)
  • Subtract the minimum monthly water charge for an irrigation account, which is $12.60 (inside city rate for a 3/4" size meter).
  • In this case, the potential monthly savings for an inside-City customer would be $63.86.

Outside city of Charleston

  • First, calculate the average amount you pay in SEWER charges each month. Let’s say it is $93.35 (Based on 2018 average customer usage of 7 Ccf.)
  • Subtract this amount from the maximum sewer charge, which is $196.67 (2018 outside the City rate).
  • Now subtract the minimum monthly water charge for an irrigation account, which is $19.35 for outside-City customers (for a 3/4" size meter).
  • In this case, the potential monthly savings for an outside-City account would be $83.97.

Most customers see a payback on the up-front cost of installing the irrigation meter in 4 to 5 years. For a savings and payback period estimate, call (843) 727-6800, or email us. One important thing to consider is how getting an irrigation meter will affect your domestic sewer bill if you live in a single family home. You won't pay any sewer charges for water use through an irrigation meter, but your sewer bill for your residential account will increase slightly because your domestic sewer charges will be calculated based on 100% of your domestic water usage instead of 95%.

Show All Answers

1. What’s the advantage in getting a separate irrigation account?
2. How much does it cost to install a residential irrigation meter?
3. How much does it cost to install a commercial irrigation meter?
4. How much will I save on my monthly bill if I install an irrigation meter?
5. How do I apply for an irrigation meter?
6. How long will it take to get an irrigation meter installed?
7. Who installs the irrigation meter?
8. Who can I contact for more information?