voltchaser1360, I'm sorry to hear that! This toilet is designed for a water-efficient 1.28 gallons per flush. Please check the following to ensure that your toilet is working correctly: 1. Adjust the tank water level to match the waterline. 2. Fully open the water supply shut-off valve. 3. Clear obstructions from the trapway, jet, or bowl rim holes. 4. Clear obstructions from the waste line. Please let us know if you have any questions or need further assistance.
Best regards, Jon
Phone: 1-855-345-1345 | Email: customerservice@deltatoilet.com | Facebook/Twitter: @deltafaucet