Hi jim10011,
Thank you for your review of the Delta Faucet FOUNDATIONS® Elongated Toilet MODEL#: C43913-WH. Please accept our sincere apology for the inconvenience you are experiencing. We are always happy to assist. Quality is very important to us and our products undergo rigorous testing to ensure high-quality performance.
If you are experiencing poor flush, try the following:
A. Adjust the tank water level to match the waterline.
B. Fully open the water supply shut-off valve.
C. Clear obstructions from the trap way, jet, or bowl rim holes.
D. Clear obstructions from the waste line.
We appreciate your business and look forward to continuing to serve you. Please contact us directly if you have any further questions.
Best Regards,
Kelley
Digital Communications Specialist