Install waterless urinals
Why
We have moved from urinals that flush hundreds of litres per day to ones that only flush when they are used. Now it’s time to move to urinals that don’t flush at all.
How
Available at select plumbing or hardware stores. May need to special order or order on-line. Waterless urinals drain to the sewer system. However, instead of flushing, they have a small trap with a liquid floating on it to prevent odors. Urinal needs to be cleaned periodically by running water through, and liquid needs to be added periodically.