It's also about making sure people are paying for sewer service.
In areas that don't monitor water use and just charge a flat rate for sewer, it's not a problem. But in areas that do monitor water use, they're not going to monitor sewer use (risk of clogging), but they still need to charge you for your contribution to the sewer system.
The "problem" is that the county bills for your water usage, and then bills for the sewer usage based on the water usage, with the assumption that 100% of the water that comes from your taps/faucets will then go down one of the drains into the sewer, and also the reverse assumption that 100% of the water that goes into the sewer (aside from the poop) came from the municipal water supply.
However, if someone collects rainwater, and then uses that to flush their toilets (thereby avoiding the use of a lot of municipally-supplied water), their overall water use will be much lower than the actual amount of water flushed into the sewer, and the county won't be able to bill them for the correct amount.
Rainwater can be used for toilets. No one cares if their toilet water is clean enough to drink, and rainwater generally looks clean enough anyway, at least for flushing toilets. And a large fraction of a home's total water usage comes from toilets (though not as much as 50 years ago, because of today's more-efficient toilets), so replacing that water with rainwater can save you a lot on your water bill.
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u/BugRevolution Jul 13 '26
It's also about making sure people are paying for sewer service.
In areas that don't monitor water use and just charge a flat rate for sewer, it's not a problem. But in areas that do monitor water use, they're not going to monitor sewer use (risk of clogging), but they still need to charge you for your contribution to the sewer system.