Thank you for your question, Eric D! Cleaning with a damp non-abrasive sponge and buffing it dry with a clean soft cloth should help keep your product looking beautiful. To remove water spots, use warm water and a soft, damp cloth. Hard water stains may be removed using a 50/50 solution of white vinegar and water. Make certain that you rinse the surface thoroughly with water afterward. If additional cleaning is required, all of our finishes may be cleaned with Windex® Original Glass Cleaner. https://www.deltafaucet.com/design-innovation/inspiredliving/how-to-clean-a-faucet Best regards, Edward

Hi, Nancy. Thank you for your question. We do not manufacture plugs for sink application. The escutcheon plate for the Delta 597LF-MPU faucet is a 4" center installation and will not cover 6" installation. Best Regards, Rosanna

Hello, cooper5ab! Thank you for your question. Unfortunately, we do not have a part to convert the existing pop-up assembly to a push-pop up. However, you can purchase a complete drain assembly such as the 72173 Push Pop-Up with Overflow for use with this faucet. https://www.deltafaucet.com/parts-product-detail?modelNumber=72173 Best regards, Jon

Hello Kim S, Thank you for your question. The handle temperature rotation of the Delta Cassidy Kitchen 9197-AR-DST and Lavatory 597LF-MPU faucets are just differently designed. However switching the supply lines connections to the valves, below he sink on one of the units would be a suggestion we would have. Best regards, Tanya

Hi, JStar! Thank you for your question. There is a small pivot seal and gasket that would need to be unscrewed to remove the stopper from the horizontal rod underneath the sink. Once this is unscrewed off, you can remove the stopper from above the sink. Here is a link to the parts diagram for the pop up drain assembly to show these parts to you: https://media.deltafaucet.com/PartsDiagram/RP26533_Pop_Up_Drain.pdf Best Regards, Rosanna

Hi, Ksanders78! Thank you for your question, and I am sorry to hear that you are experiencing low flow from your Delta faucet. You may need to flush out the valve body. To flush out the valve body, first turn off the water supply to the faucet.           1. Remove the handle. On the lever handle, you should find a small hex screw that can be loosened with a 3/32" Allen wrench. The handle will lift off when this screw is loose enough.           2. Once the handle has been removed, unscrew the dome-shaped cap. The domed shaped cap will unscrew counter-clockwise.            3. Unscrew the bonnet nut under the cap.          4. After these parts have been removed, you can then pull the valve cartridge assembly straight out.           5. Now, with the valve completely disassembled, place a bucket upside down over the top of the empty brass valve body. Turn the hot and cold water supplies back on and let the water run for about 10 to 15 seconds. The water will come directly up out of the valve and should mostly be deflected back into the sink by the bucket. You might have a little bit of water to clean up, though!           6. Shut off the water supplies. Make sure that the valve cartridge assembly does not have any debris stuck to them and reinstall them. Reinstall the valve cartridge assembly. Reinstall all parts. At this point, you can test the faucet again. If this does not fix the issue, 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 customerservice@deltafaucet.com. Best Regards, Rosanna

Hi, Ryja! Thank you for your question. The 597LF-PNMPU supply line connections are 1/2" connections. Best Regards, Rosanna

Dear Need2no, Thank you for your question. The Delta Cassidy Lavatory 597LF-MPU has a recommended distance minimum 2 1/2" (64 mm) clearance to the back splash, to ensure room for the lift rod of the faucet. This is the say recommended clearance for all of the standard lavatory Delta faucets. We would advised possible vessel sink style faucets for your install. Best regards, Tanya