Do not use wash basins for drainage, make another connection below with drainage of basins, it's hygienic. Put this system on tub or table at the base and keep sink empty for other usage. You have blocked the sink. Nice job.
We need more innovators with practical solutions. Well done. If you scale the design up, are you using same or less water than current flushing K Dexter or AS Allbrook...?
@@AbdullahMohammad-cj2cz Scale up means make it larger, like life-size. If so, does it use the amount of water (or less) stipulated by federal law/regulations. That wasn't hard, was it...? 😉