Thank you for your question. I am sorry to hear that you are experiencing low flow from your Delta faucet. The 554LF-RB does have a 1.20 gpm flow rate at 60 psi. If you are getting less than this, we recommend to flush the valve to make sure no debris is stuck inside causing the low flow. To flush, turn the water off at the shut off valve. Remove the handle by unscrewing the set screw counterclockwise with a 3/32" allen wrench. Unscrew the cap and bonnet. Remove the valve cartridge and flow restrictor. Have a bowl or bucket to divert the water from spraying everywhere. Turn on the water at the shut off valve. Water will flow through the valve, out of the open handle. Flush for 30-45 seconds. Turn off the water at the shut off valve. Reinstall all parts. Test the water flow. If still low flow, please contact our Delta Customer Service line at (800)345-3358. We are available Monday-Friday, 7am-7pm, CST and Saturday, 8am-5pm, CST. You may also email at firstname.lastname@example.org.
Date published: 2018-04-19