P4030-7 Diverter Cartridge
This cartridge replaces P4030-6
This cartridge is auto-off except under conditions of very low, extremely high or unreliable water pressure, sediment or particles in water, buildup of lime, salt, iron or other mineral deposits, etc., in which case it must be disengaged manually by the user.
BEFORE YOU ORDER! You MUST correctly identify your faucet. Check the label on the face of the mixer knob:
M70 Sapphire:
If you have an M70, this cartridge will fit your faucet.
Instructions
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M65 Sapphire:
If you have an M65, you MUST determine which diverter knob you have:
If you have a cast knob, this cartridge will fit your M65 faucet.
If you have a solid knob, you must contact us for assistance. Be prepared to send a photo of the inside of your knob.
Instructions
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divert diverter p4030-6 control
- 5 stars: 55 (79%)
- 4 stars: 6 (9%)
- 3 stars: 3 (4%)
- 2 stars: 1 (1%)
- 1 star: 5 (7%)
Corrected leaks from original diverter.
P4030-7 Diverter Cartridge
Hi Patricia, we're sorry to hear you're experiencing issues with the P4030-7 Diverter Cartridge. Please contact our support team so we can assist you further. Thank you for your feedback.
P4030-7 Diverter Cartridge
Purchased my first Dishmaster in 1965 and have owned each new model ever since. New home in new state, a new Dishmaster. The infrequent part or valve replacement is easy and keeps my Dishmaster "ticking".
Always a quick response with helpful suggestions. When the first fix didnt solve the problem, an alternate at no additional cost worked perfectly. We’ve been using Dishmaster faucets for over 50 years and Chris has become our go to guy. Always super support!
I have had a Dishmaster ever since I was a girl (over 50 years). It is great for rinsing dishes for the dishwasher, washing things that aren't going in the dishwasher, washing pots and pans and so much more. The service and help given by the people there is amazing, they are so patient and willing to explain or walk me through any questions. After sending them a photo, they got me the new style diverter which is working perfectly. I think we will always have a Dishmaster.
After a number of tries previously (partly because we have two Dishmasters), this diverter valve works perfectly, so thank you.
I love this faucet, but most of all I appreciate the support given to help maintain it for years.
P4030-7 Diverter Cartridge
Only time will tell if the new style cartridge last any longer than the original style. This is the 2nd timer I have had to replace the diverter cartridge in 7 years. Trouble is the new style handle that is supplied to work with the new style cartridge does not fit the faucet properly. It leaves a larger gap between the faucet and handle, so it is not uniform to the other side. Even my wife commented on it and now is not happy with the results, least I don't have to hear about the dripping faucet anymore...
This is as true of the old as of the new diverters. It is a real pain to get the little plastic nubs into the holes in the faucet assembly. It always takes me several tries over some 10 minutes to finally get them in. Any tricks to get them in more easily would be appreciated!
Hi Bill,
The pins on that diverter really do line up with the holes as they should, but the o-ring around the outside is a very tight fit into the body of the faucet. This can make it difficult to install sometimes, especially if you aren't holding it perfectly straight.
Make sure that you are holding the cartridge straight...it can't be tilted up/down or left/right even slightly, or it's not going to go in easily. Also, light pressure is better than trying to force it into place. The harder you push the more likely you are to tilt it, so gentle persuasion is your best friend in this case.
P4030-7 Diverter Cartridge
Fixed the problem and was very easy to install 👌👌
I am a lifelong Dishmaster user since the 1950's as will remain so. That said, this black P4030-7 diverter is a disappointment. I have well water and even with filtration and water softener this diverter lasts a year at best before it starts to bind. Removal and cleaning does no good. I simply need to replace it every year. Either make a better one or how about a 2-for-1 discount??
Thanks for your review, and we appreciate your lifelong use of Dishmaster products.
The P4030-7 is a major improvement over the P4030-6. Our experience is that when it starts sticking, it's due to mineral/lime buildup on the ceramic discs in the cartridge. On our website we warn that you're more likely to see this issue with well water than you might with municipally treated water. You had in the past mentioned that you're on a well and at the time had no filter and lots of sediment. We would expect you to see an improvement in function since adding your filter/softener (which appears to be the case based on order frequency), but it's not going to be a 100% fix.
We also communicated with you suggesting you might clean the cartridge in a solution of white vinegar and water to help remove some of the buildup, to which you responded 'Just to let you know, rather than trying to clean out the old diverter I just bought and installed a new one. Often with plumbing it's best to simply get a new part.' We can't be responsible for how you choose to approach your maintenance, we can only make suggestions and then leave it up to the customer how to proceed.
Thanks again for being a lifelong Dishmaster user!
Replacing the diverter stopped the sticking. But I could not figure out why the old diverted was sticking.
Most often it is due to lime, or other things, in the water that build up on the internal surfaces of the cartridge. Debris can also accumulate in the cartridge. See tips for cleaning here: https://dishmasterfaucet.com/pages/p4030-7-diverter-cartridge
I haven’t inserted P4030-7 yet. I will do so as soon as the original diverter cartridge fails.
Instructions easy to follow, my only complaint is that knob doesn’t fit well. I put the new little screw in, but the new textured end on the diverter doesn’t fit my existing knob well - the knob is wobbly, I’ve had to reset it once a week or so.
We are contacting you via email. There is a procedure regarding the diverter knob when putting a new P4030-7 diverter into an older M65 Sapphire. https://dishmasterfaucet.com/collections/m70-m65-sapphire-parts/products/p4030-7-diverter-cartridge
Works great so far.
Dishmaster unable to fix.
We last sent you an email with additional questions on 2/10, to which we have not received a response:
You're installing it so that the window with the spring in it (on the side of the diverter) is facing down? It has to go in that way to line the pins up properly and it is opposite of what you're used to with the older green cartridge.
You're not getting water from both the spout & spray at the same time when you turn it on? The only issue you're seeing is with that bad leak coming from the cartridge itself?
Did you try wrapping a piece of teflon tape around the o-ring before installation? (NOT the threads on the retaining ring)
So we're not ignoring you, but from our end we can't help any further without the information we requested
It works. I still get a small leak through the brush when it is not in use. This is an occasional leak and I have tried re-installing the valve but still have this intermittent problem.
When I talked to Chris some time ago he said you won't have any new cartridges until the end of January or first of February. When you get your new cartridges I would appreciate if you could send a new one.
Will be contacting you.
This new cartridge performs much better then the old style
Diverter cartridge arrived quickly and installation was easy following the instructions provided!
P4030-7 Diverter Cartridge
The diverter cartridge fit perfectly, this has been my experience with all dishmaster replacement parts I've used for the past 50 years!! Great company.
P4030-7 Diverter Cartridge
Old style Diverter would work well for awhile then get stuck on open and next person would turn on water and not realizing diverter was open and spray them or the windows or kitchen. So far the extra length with new P4030-7 hopefully has solved that issue.
It worked!
Easy install Works great
So far so good thank you