Cartridge - DIAMOND^™ Valve - 1H

Thank you for your question, Jim W! I apologize for the confusion with the Lifetime Limited Warranty and would be happy to clarify. Per the warranty, any parts that prove defective will be replaced, free of charge, for as long as the original owner has this product installed in their home. Replacement parts can be obtained by contacting the warranty department directly at 1-800-345-3358 Monday-Friday: 8a.m.-8p.m. EST and Saturday: 9a.m.-6p.m. EST or via email at customerservice@deltafaucet.com. Parts are also sold at our local and online retailers for second owners and commercial properties that are out of warranty. Best regards, Edward

Hello Kent, Thank you for your question! The orange tab on the RP50587 valve assembly is the handle limit stop. The stop limits the handle motion to the hot water side. It only has two positions, it is not designed to be in between (middle) of the two positions. The cartridge comes in the full range setting from the factory. This information can be found on the installation guide that comes with the faucet that includes this cartridge. https://media.deltafaucet.com/MandI/64211%20Rev%20A.pdf Best regards, Tanya

Hi, Dddd! Thank you for your question. The label indicates that components inside the product contain exposed brass, which includes small but detectible amounts of lead—an element on the Prop 65 chemical list. Many products sold in California are required to carry this label. Even though a product may be found to contain a Proposition 65-listed chemical, it does not mean that use of the product will cause cancer, birth defects or other reproductive harm. Nor does it mean that a product is unsafe. All Delta Faucet Company products meet or exceed the requirements of applicable product performance and safety industry standards, as well as the federal Safe Drinking Water Act. We are confident there is no health hazard associated with the installation or removal of our products. Best Regards, Rosanna

Hi, OCmjt00. Thank you for your question. I am sorry to hear that you are experiencing an issue with your Delta faucet. We would recommend to replace the cap and bonnet assembly if they cannot be unscrewed from each other. For assistance with this, 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

Hello Heather, Thank you for your inquiry! Yes, the RP50587 is the correct cartridge assembly for the Delta Victorian Pull-Down Kitchen 955-DST faucet. All Delta faucets and parts feature the same quality parts, materials, and workmanship, no matter what kind of dealer sells them. Delta retail dealers usually sell faucets that include the handles in the boxes. Plumbing professionals and Delta Studio Showrooms sell faucets where the faucets and handles are packaged and sold separately ("LHP" models), giving the customer some additional styling choices. However, the quality of all Delta faucets and parts are the same. Best regards, Tanya

Hi, Jack! Thank you for your question. Unfortunately, we do not have a break down of the cartridge as the cartridge itself should not be broken down. If the valve cartridge assembly is in pieces, we recommend to replace the whole part. Best Regards, Rosanna

Hi, TomB! Thank you for your question, and I am sorry to hear that you are experiencing a leak from your Delta faucet. There is a bonnet nut that is holding the cartridge down, underneath your handle. We recommend to tighten the bonnet nut to stop the leak. To do this, turn the water off at your shut off valve. Remove the handle. Tighten the bonnet by turning clockwise, to the right. Install the handle back on and turn the water back on. Test the faucet. If the faucet still leaks, we recommend to replace both the valve cartridge assembly, RP50587, and the bonnet nut, RP51503. Best Regards, Rosanna

Hi, TSLove! Thank you for your question, and I am sorry to hear that you are experiencing low flow. Over time, common water debris will settle in the house supply lines. Anytime the water is shut off to a portion of the home, this debris can become dislodged and will move through the pipes to be caught by a faucet. Local construction or the changing of the seasons can also cause this. Flushing the supply lines through the unit should remedy this situation. To flush the unit, we recommend the following: Start with the easy stuff: Remove your aerator, wand or hose to check the flow through the unit without that part installed. If the flow is good, the piece you’ve removed is where the issue is. Soaking the part in a 50/50 mixture of white vinegar and water could help remove any particles or debris blocking the flow. If the water does not have a good flow, the problem could be in the faucet. Next, check the supply lines for debris: Turn the supply off to both the hot and cold-water lines. Once off, turn the handle on the faucet to the on position and leave it there to bleed the lines of any excess water. Next, disconnect the hot water supply line and place it inside of a bucket. Once the line is securely positioned into the bucket, turn on the cold-water supply. Since the handle was left in the on position, the water will flow up the cold supply line, through the faucet cartridge and back down the hot water line into the bucket. Leave this flowing for at least 30 seconds. After flushing, reconnect the hot water line and repeat this process with the cold-water line to ensure all particles have been removed from both supplies. If you need further help with this process, please contact us directly and we can walk you through the procedure. We are available at 800-345-3358 (prompt 2, then 3), Monday through Friday, 8am to 8pm and Saturday, 9am to 6pm CST. Best Regards, Rosanna